How is radioactive dating used to measure Earth’s age?
Answers
Answer:
The age of rocks is determined by radiometric dating, which looks at the proportion of two different isotopes in a sample. Radioactive isotopes break down in a predictable amount of time, enabling geologists to determine the age of a sample using equipment like this thermal ionization mass spectrometer
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This is an illustration of a typical food web. You might see a food web like this where you live. The organisms responsible for changing sunlight into food would be the Response area. Grass is one of these. You can see that the grasshopper and rabbit eat the grass and the bird and the shrew eat the grasshopper. Imagine that there was a big increase in the number of snakes in this area. We would then expect the Response area numbers to drop. In this food web, we consider the hawk a Response area. If the hawk population increases, we would see a drop in birds and shrews and snakes! The fungi and bacteria in the food web are examples of Response area. They break down any and all dead organisms. This helps to recycle matter.
Answers
Answer: ion know what ur question is
Explanation: when this happens this a big change in the area . could put animals in danger for living the increase of the snake would give the hawk population then the rest would go lower but then the it would even out because then the people would them and give them their food leaving the floor to grow 50 5 would be good but poeple like to make a mess take and eat it and trow it up or it out we all are gonna die one day thats lesson for today
We were all once a single cell and today our body is made up of around 65 trillion cells. Explain how this happened.
Answers
Answer:
cell multiplication
Explanation:
cells multiply quickly and make up what we are today
Every day, people cook with and consume a variety of foods that contain lipids. The table shows the amount of saturated fat in various foods.
Amount of Saturated Fat in Foods
Food (1 tbs or 14 g)
Saturated fat (g)
Olive oil
2
Margarine
2
Butter
7
Lard
5
Canola oil
1
Which food contains the most kcal/gram, based on the data in the table?
margarine
lard
butter
canola oil
Answers
The simple graph shows the relationship between available resources and population size. What evidence does the graph provide? A. An increase in the amount of available resources causes a decrease in population size. B. A decrease in the amount of available resources causes a decrease in population size. C. An increase in the population size causes an increase in the amount of available resources. D. A decrease in the population size causes a decrease in the amount of available resources.
Answers
Answer:
b
Explanation:
Its right
Sorry if not correct
Write a description or a reason why you are doing this activities of conserving our natural resources.
1. Using a glass when brushing teeth -
2. Hanging clothes -
3. Walking -
4. Feeding the stray animals -
5. Using back page of paper -
6. Using fan -
7. Watering the plants -
8. Sweeping -
Answers
1. Using a glass when brushing teeth: By using a glass instead of leaving the tap running while brushing our teeth, we can conserve water. Freshwater is a finite resource, and reducing unnecessary water usage is essential for preserving our water supplies and ensuring their availability for both humans and the natural environment.
2. Hanging clothes: Opting to hang clothes to dry instead of using a dryer not only saves energy but also reduces greenhouse gas emissions. Clothes dryers consume a significant amount of electricity, and by utilizing natural methods like hanging clothes, we can contribute to reducing our energy consumption and lowering our carbon footprint.
3. Walking: Walking instead of using vehicles for short-distance travel offers multiple benefits. Firstly, it helps reduce air pollution by decreasing the emission of harmful gases from vehicles. Secondly, walking promotes personal health and well-being, as it is a form of physical exercise. Lastly, choosing to walk reduces traffic congestion and saves fuel.
4. Feeding stray animals: Feeding stray animals is an act of compassion and kindness. By providing food for stray animals, we help prevent their starvation and promote their overall welfare. It also reduces their need to hunt for food in natural habitats, preserving the delicate balance of local ecosystems.
5. Using the back page of paper: Utilizing both sides of a piece of paper helps reduce paper waste and conserves valuable forest resources. Paper production involves cutting down trees, and by maximizing the use of each sheet, we minimize the number of trees required to produce paper products.
6. Using a fan: Using a fan instead of an air conditioner helps reduce energy consumption and lowers greenhouse gas emissions. Air conditioners consume a significant amount of electricity, and by using fans to circulate air and provide cooling, we can contribute to conserving energy resources and mitigating the impact of climate change.
7. Watering the plants: Watering plants is essential for their growth and well-being. By providing them with adequate water, we support their ability to photosynthesize, produce oxygen, and contribute to a healthy ecosystem. Additionally, practicing responsible watering techniques, such as using watering cans instead of hoses, helps conserve water resources.
8. Sweeping: Sweeping instead of using a leaf blower or a hose to clean outdoor spaces reduces energy and water consumption. Leaf blowers and hoses consume significant amounts of electricity and water, respectively. Sweeping not only saves resources but also minimizes noise pollution and prevents soil erosion caused by high-pressure water flow.
Engaging in these activities of conserving natural resources demonstrates our commitment to environmental stewardship and sustainable living. By making conscious choices in our daily lives, we can contribute to the preservation and protection of the Earth's ecosystems for the benefit of current and future generations.
MAKE ME BRAINIST
which source of renewable enegry do you think is most likely to be used in your community within the next 20 years? explain your answer
Answers
In recent years, there has been a significant shift towards renewable energy sources in many countries, as they are becoming more cost-effective and environmentally friendly compared to traditional fossil fuels. The most common renewable energy sources are solar, wind, hydroelectric, geothermal, and biomass.
Solar energy is one of the most rapidly growing renewable energy sources worldwide. It has already become affordable for households and businesses to install solar panels, which are increasingly being used to generate electricity. In many communities, solar farms are also being established to supply power to the grid. With the advancement in technology, the efficiency of solar panels is improving, and the cost of installation is decreasing, making it a more viable option for more households and businesses.
Wind energy is another renewable source that is increasingly being utilized. Wind turbines are being installed in many areas, especially in regions with consistent winds. As with solar energy, advances in technology are leading to improved turbine efficiency and lower installation costs.
Hydroelectric energy is a well-established source of renewable energy that has been in use for many years. Many countries have already established hydroelectric power plants, and more are being constructed. While the construction and operation of these plants can have some environmental impacts, hydroelectricity is a clean and reliable source of energy.
Geothermal energy is another renewable source that has great potential. It involves extracting heat from the earth's core to generate electricity. While currently geothermal energy is not widely used, there is increasing interest in it as a source of clean and renewable energy.
Biomass energy involves using organic materials such as wood chips, crop waste, or even animal manure to generate electricity. While this source of energy is not as clean as some of the others, it can be a good option for communities that have access to a lot of biomass waste.
In conclusion, the most likely source of renewable energy to be used in a community will depend on a variety of factors, including the availability of resources, local government policies, and technological advancements. However, solar and wind energy are likely to become more popular due to their increasing affordability and efficiency, as well as their potential for use at a household or small business level.
Answer: Electricity is the renewable energy source likely to be used within the next 20 years.
Explanation:
These days electricity is reaching far and wide corners of the country, with this fast growth the future is electric. The growing craze for electric cars, electric cars, and other electrical appliances electricity demand is increasing.
Electricity is easy to produce with the use of hydropower plants and windmills. It is most likely to take over the future.
The diagram below shows part of the rock cycle.
Which type of rock does B represent?
Igneous rock
Metamorphic Rock
Rock formed by compaction
Rock formed by heat and pressure
Answers
A student wants to know if the weight of a cart affects its speed at the bottom of a ramp. He can change the weight of the cart by adding different numbers of balls, and he can change the height of the ramp by using different numbers of blocks. Which three tests would be invalid? (Select all three)
Answers
Answer: D
Explanation:
Answer: its the first one
Explanation:
Determine whether each of the following is a characteristic of DNA, RNA, or both.
Contains adenine:
Is double-stranded:
Is made of nucleotides:
Contains deoxyribose sugar
Answers
Answer:
These are characteristics of DNA.
Explanation:
RNA is not double stranded.
MIGHT GIVE BRAINLIEST Compare a paramecium with a giraffe. How are their cells alike? How are they different? Write
your answer in complete sentences. be original
Answers
Answer:
A paramecium is similar to a giraffe in one defining way. Both a giraffe and paramecium have eukaryotic cells. One way in which the two are different is that the paramecium feeds on decaying organisms, whilst a giraffe eats leaves. Another is that paramecium primarily live in fresh water, while a giraffe dwells on land.
A paramecium and a giraffe are two very different organisms. A paramecium is a single-celled organism, while a giraffe is a large, multicellular mammal. Despite their many differences, both a paramecium and a giraffe have cells. However, the cells of a paramecium and a giraffe are quite different from each other in terms of size, shape, and function.
One of the most significant differences between the cells of a paramecium and a giraffe is their size. The cells of a paramecium are very small, measuring only a few micrometers in diameter. In contrast, the cells of a giraffe are much larger and more varied in size, depending on their function within the body. For example, giraffe nerve cells are much larger than giraffe red blood cells.
Another important difference between the cells of a paramecium and a giraffe is their shape. The cells of a paramecium are typically elongated and oval-shaped, with a pointed end at one end and a rounded end at the other. In contrast, the cells of a giraffe are much more varied in shape, depending on their location and function within the body. For example, giraffe muscle cells are long and cylindrical, while giraffe nerve cells are elongated and have many branching extensions.
Despite their many differences, the cells of a paramecium and a giraffe do have some similarities. For example, both types of cells have a cell membrane that surrounds the cell and controls the movement of materials in and out of the cell. Both types of cells also have a cytoskeleton, which provides support and structure to the cell. Additionally, both types of cells have a nucleus, which contains the cell's genetic material.
Overall, while the cells of a paramecium and a giraffe have some similarities, they are also very different from each other in terms of size, shape, and function. The small, simple cells of a paramecium are adapted for life in a single-celled organism, while the larger, more complex cells of a giraffe are adapted for life in a multicellular mammal.
pls help me will mark brainlyest :) :
Internal and External Structures
You are now going to construct an argument that plants have internal and external structures that support growth and reproduction.
Choose the internal and external structures you want to gather evidence and create a statement about.
subject: sciences
Answers
Explanation:
Some structures are internal, like the lungs, brain, or heart. Other structures are external, like skin, eyes, and claws. Some structures are unique, like the long neck of a giraffe. Other structures are more common, like a heartStructure and Function: Plants and animals have both internal and external structures that serve various functions in growth, survival, behavior, and reproduction.
I hope this helps! Good Luck!
MARKING BRAINLIEST?! PLSPLSPLS I AM TRUE TO MY WORD
Answers
Answer:
the tree to the pine vole to the black racer
Explanation:
its a chain they are all linked
Answer:the arrow between the pine vole and the gray fox
Explanation:
i needddddddddddddddddd help pls !!
Answers
Answer: 1. newton's second law states that the acceleration of an object is directly related to the net force and inversely related to its mass. The acceleration of an object depends on two things, force, and mass.
2.The greater the mass of an object, the less it will accelerate when a given force is applied
3. 40kg cause its more lighter then the 400kg cause the 400kg is heaver then 40kg
Explanation:
i hope this helped you
Answer:
Explanation:
we know by newton's second law of motion that
F=ma
where F is force
m is mass
and a is acceleration
Artificial selection is a form of ___________.
adaption
mutation
microevolution
macroevolution
Answers
Item 5
What is the process the human urinary system uses to filter waste from the blood, store it and then get rid of it?
Choose all correct answers.
Waste and water from the blood are filtered in the kidneys, producing urine.
When the bladder gets full, urine exits the body through the urethra.
Urine flows through the ureter tubes and is stored in the urethra.
The blood transports urea, old cells, excess salt, and unwanted water to the bladder.
Answers
Answer:
1/A is correct.
Explanation:
Im not sure about the rest but aleast you have one right... :)
Explain the difference between manipulating a tool and manipulating another person.
Answers
Answer:
Let's start by defining the two terms. “Influence is the process of getting someone else to want to do, react, think, or believe the way you want them to.” Source: Chris Hadnagy, Social Engineering: The Art of Human Hacking. Manipulation is defined as “exerting devious influence over a person for your own advantage”.
Explanation:
Hope it helps u
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Copy the following base sequence of one strand of an imaginary DNA molecule:
AAT - GCC - AGT - GGT - TCG - CAC
Answers
The following base sequence of one strand of an imaginary DNA molecule is AAT - GCC - AGT - GGT - TCG - CAC, so the other strand will be base sequence of TTA-CGG-TCA-CCA-AGC-GTG.
DNA (deoxyribonucleic acid) is the genetic material that encodes the instructions for the development, function, and reproduction of all living organisms. It is composed of two complementary strands that are arranged in a double helix structure, with the base pairs forming the rungs of the ladder. In the base sequence provided, AAT-GCC-AGT-GGT-TCG-CAC, each three-letter sequence (called a codon) corresponds to a specific trait that is expressed in the cell and carries out the particular function.
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Many types of cells, such as the ones in this activity, live together in groups, called tissues. A tissue is a group of similar cells that together carry out a specific function. Describe how the skin cells, neurons, muscle cells, and blood cells you have observed relate to the functions of skin, nerve, muscle, and blood tissue.
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2x24 in distributive property
Answers
Answer:
2 ( 1 x 12) = 2 x 24
Hope this helps!
that’s what i would do!!
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Scenario
The global population has increased immensely over the last two centuries. Humans use fossil fuels to do a variety of tasks from heating their homes to travel to production of everyday products. As the human population has increased, so have the global fossil carbon emissions.
Write a scientific explanation that describes total world carbon emissions in 2050 if the world’s population decreases to five billion people.
Claim:
Evidence:
Reasoning:
Answers
Answer:
The earth would eventually become become a brown and grey wasteland and the blue sky and rainbows and things like that will be rare rain would be highly acidic
Evidence: There are less people which means less cars will be driven less oil will be used etc. also fossil fuels are non renewable resource which means fossil fuels will be harder to find overall diving up prices of gas,heating,etc which might make Deter people from using fossil fuels and switching to something cheaper. At this point to people will dislike fossil fuels more then now.
Reasoning: I think people won’t like fossil fuels for 2 good reasons. First the driven up price. Second there will be noticeable effects from fossil fuels it 2050. It can make crops harder to grow which could lead to famine and a Recession because driven up food prices and it will hurt the economy. Towns will slowly flood. Arctic species will die so on. So a poor family’s that can’t afford food won’t spend more money on something that overall hurts them. They will despise people who use fossil fuels and it will become socially wrong. Civilization at that time might also be working on them self. Population decreased a major amount. Something bad happened. And if what ever caused the decline in population was caused by humans which there’s no way to tell, they might try to improve human habits try not to begin wars, work on helping each other, and most importantly don’t harm there plant.
Which of the following adaptations would help a tree-dwelling nocturnal scavenger survive in its environment?
Light-colored fur
Heels with fur
Night vision
Short snout
Answers
p lz help will definitely give brainiest
Answers
Answer:
H - 16
C - 4
O - 4
Explanation:
The reaction is
2CO + 4H2 = x CH4O
This means x=2 because the number of atoms have to be balanced. There are 8 Hydrogens on one side, meaning 16 in all. There are 2 Carbons on one side, meaning 4 in all. Lastly, there are also 2 Oxygens on one side, meaning there are 4 in all.
Atoms in the reaction are H- 8 atoms, C-2 atoms, and O- 2 atoms.
During the reaction, 2 molecules of methanol are produced.
We can write the equation as
CO+ 2 H2 ⇒ CH3OH
(Methanol)
For 1 molecule of CO and 2 molecules of H2 we get 1 molecule of CH3OH.
Hence, for 2 molecules of CO and 4 molecules of H2 we get 2 molecules of CH3OH(methanol).
From the reaction, we can easily calculate that 8 H atoms, 2 C atoms and 2 O atoms are getting reacted.
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What is an example of a haploid cell?
Answers
Answer:
Gametes :)
Male or Female Germ Cells
Answer:
Spores
Explanation:
the reproductive cells of fungi, algae, and plants
Simplify.
((67)4)−2(67)−4
Answers
Answer:
Math Error
Explanation:
((67)4)−2(67)−4 there is no answer it's a MATH ERROR
Answer:
130
Explanation:
A manual contains instructions for how to build a variety of structures using a set of interlocking bricks. If this scenario is used as a model for genetic information, which statement is correct?
A, Each set of instructions is a protein
B, Each structure is a gene
C, The manual is a chromosome
Answers
When a chemical reaction absorbs or releases thermal energy, the reaction causes a change in temperature. Read the passage about a chemical reaction that absorbs or releases thermal energy. Then, follow the instructions below.
To clean their drain pipes, some people make a solution of baking soda and vinegar. Baking soda, also known as sodium bicarbonate (
Na
H
C
O
3
)
, reacts with acetic acid (
C
2
H
4
O
2
)
in vinegar to produce sodium acetate (
Na
C
2
H
3
O
2
)
, water (
H
2
O
)
, and carbon dioxide gas (
C
O
2
)
. As the products form, thermal energy is absorbed from the surroundings and converted to chemical energy. The carbon dioxide gas creates bubbles that help clean the inside of the pipes.
Complete the statement.givening brainliest
Answers
During this reaction, solution become colder.
This is because it's an endothermic reaction where heat is absorbed from the surrounding. If it was an exothermic reaction heat would be released into the surrounding making the solution warm .
T or F? A light year is a measure TIME on an astronomical scale.
Answers
Answer:
False.
Explanation:
It's how they measure distance!
Oxygen is added to the blood and carbon dioxide is released to the air by the ?
Answers
Answer: nose or mouth
Explanation:
PLEASE HELP!
Earth Science (Astronomy)
What shape is the moon's orbit around Earth?
- an ellipse that is elongated
- an ellipse that is almost circular
-a circle
-a spiral
Answers
Answer:
- an ellipse that is almost circular
Explanation:
Answer:
An ellipse that is almost circular
Below is a carrying capacity graph of a meerkat population in an African savanna. Meerkats are omnivores and eat a variety of organisms, such as fruit, insects, scorpions and lizards. Predators of the meerkat include hyenas and eagles. What is a possible cause for the sudden change in population of meerkats after year 3?
A. Warmer weather increased the number of insects.
B. The number of eagles was reduced due to disease.
C. A fire reduced the amount of grass and fruit available.
D.A lack of predators increased the lizard population.
Answers
A fire reduced the amount of grass and fruit available.
What is carrying capacity in ecology?
In ecology, carrying capacity is measured as the maximum load of an environment. The physical features present in the environment act as limiting factors (e.g. food, water, competition, etc.). Thus, the population limit can be expected to depend on these factors.
What is carrying capacity of an ecosystem?
Populations grow at a rate limited by the availability of the Earth’s resources. A population may grow at a faster rate and follow a J-shaped curve. When the birth rate surpasses the death rate of the species, this results in exponential growth.
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