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Many, but not all, fish kills in the summer result from low concentrations of dissolved oxygen in the water. Fish, like all other complex life forms, need oxygen to survive. ... Other organisms use oxygen, too, including the algae that grow in the summer and bacteria that degrade organic matter.

Explanation:

The most common cause is reduced oxygen in the water, which in turn may be due to factors such as drought, algae bloom, overpopulation, or a sustained increase in water temperature. Infectious diseases and parasites can also lead to fish kill. Toxicity is a real but far less common cause of fish kill.

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The German geologist who theorized that Africa and South America fit together before the theory of plate tectonics is Alfred Wegener.

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In an isothermal atmosphere, changes in In p (natural logarithm of pressure) are proportional to changes in height.Changes in In p are proportional to changes in height in an isothermal atmosphere.

In an isothermal atmosphere, the temperature remains constant with height. This means that the rate at which pressure decreases with increasing height is directly related to the density of the air. In a logarithmic scale, small changes in pressure correspond to larger changes in altitude.

By using In p as a vertical coordinate or plotting pressure on a logarithmic scale, we can represent the relationship between pressure and altitude in a more linear fashion. This allows us to visualize the changes in pressure and height more clearly.

The logarithmic scale compresses the higher pressure values at lower altitudes and expands the lower pressure values at higher altitudes. As a result, the changes in In p become directly proportional to changes in height.

This relationship is due to the nature of the logarithmic function. The logarithm of a number represents the exponent to which a base must be raised to obtain that number. In the case of pressure, as we move up in the atmosphere, each unit increase in In p corresponds to a proportional increase in height.

Overall, using In p as a vertical coordinate or plotting pressure on a logarithmic scale simplifies the representation of pressure-height relationships in an isothermal atmosphere. It allows us to visualize the changes in pressure and height in a more intuitive and proportional manner.

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A) XII is the maximum possible damage designation on the Mercalli scale.

The Mercalli intensity scale is a measure of the intensity of an earthquake at a particular location, based on the observed effects of the earthquake. The scale ranges from I (not felt) to XII (total destruction).

The maximum possible damage designation on the Mercalli scale is XII, which indicates total destruction. This means that all buildings and structures in the affected area are likely to be completely destroyed, and that there may be significant loss of life.

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A) XII is the maximum possible damage designation on the Mercalli scale. The Mercalli intensity scale is a measure of the intensity of an earthquake based on the observed effects and damage caused by the earthquake at a given location.

It was developed by Italian seismologist Giuseppe Mercalli in the early 20th century as a way to standardize earthquake reporting and to better understand the impact of earthquakes on buildings and infrastructure. The Mercalli scale consists of a series of increasing levels of intensity, each with a description of the types of damage and effects that can be expected at that level. The scale ranges from I (not felt) to XII (total destruction), with each level describing a progressively more severe level of shaking and damage. At the highest end of the scale, an earthquake with a Mercalli intensity of XII would be characterized by total destruction, with buildings and infrastructure collapsing and many casualties. This level of intensity is extremely rare, and only a few earthquakes in history have been rated as XII on the Mercalli scale, including the 1906 San Francisco earthquake and the 1960 Valdivia earthquake in Chile.

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hi hi hi ok what do u want

Explanation:

the Bald Mountains, the Great Smoky Mountains, and the Unicoi Mountains, and its major peaks include Roan Mountain 6,285 ft (1,916 m) in the Unakas, Big Bald 5,516 ft (1,681 m) and Max Patch 4,616 ft (1,407 m) in the Bald Mountains, Clingmans Dome 6,643

The gas that was formed in Earth's atmosphere before it was able to absorb and retain heat is hydrogen.

The earth has a multi-layered envelope in the form of layers of air which are often referred to as the atmosphere. The layer of our earth's atmosphere consists of various kinds of gas elements which in it can produce the formation and changes of weather and climate on planet earth.

The constituent gases with relatively fixed concentrations (permanent gases) under normal conditions, namely nitrogen (N2), oxygen (O2), argon (Ar), neon (Ne), helium (He), hydrogen (H2), xenon (Xe ). Helium (He) and hydrogen (H2) – very rare in air except at high levels. This gas is the lightest and is often used to fill meteorological balloons.

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Answer:

d

Explanation:

Japan ended its practice of isolationism in The year  1853. Thus the correct option is B.

Isolationism is the technique of limited engagement in the problems or activities of other organizations, specifically in the political issues of other nations. It includes governmental legislation to maintain international affairs.

The United States Commodore Matthew Perry forced Japan to cease its confinement and open its harbors to trade with American commerce ships, which put an end to Japan's isolation, in 1853.

Isolationism emphasized maintaining global relations and refraining from getting involved in wars in Europe and Asia. The long-standing American refusal to participate in European coalitions and conflicts is referred to as isolationism.

Therefore, option B is appropriate.

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a) Binomial nomenclature

Carl Linnaeus developed the system of binomial nomenclature to organize all life on Earth. This system assigns a unique two-part name to each species, consisting of the genus name and the species name. The binomial nomenclature provides a standardized and universally recognized way to identify and classify organisms, allowing for clear communication and understanding in the field of biology.

Linnaeus introduced this system in his landmark work "Systema Naturae" published in 1735. The use of binomial names helps in organizing and categorizing the vast diversity of species on Earth, providing a common language for scientists and researchers to study and discuss different organisms. It allows for precise identification and facilitates the classification and understanding of the relationships between different species. The system has since been expanded and refined by subsequent scientists, but the fundamental concept of binomial nomenclature remains a key contribution of Linnaeus to the field of taxonomy.

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\(sin45^0=\frac{x}{30} =>x=sin45^0.30=15\sqrt{2}\)

so the answer is C

Dry soil can be considered a low-loss dielectric at all specified frequencies (60 Hz, 1 kHz, 1 MHz, and 1 GHz) based on the given parameters of € = 2.5, H = 1, and 0 = 10^(-4) S/m.

To determine the behavior of dry soil at different frequencies, we can use the following guidelines:

- Good conductor: When the conductivity (σ) of the material is very high, indicating efficient electron flow and low resistivity. Good conductors have low loss (ε") and high permittivity (ε') values.

- Quasi-conductor: When the conductivity is moderate, indicating some resistance to electron flow. Quasi-conductors have moderate loss (ε") and permittivity (ε') values.

- Low-loss dielectric: When the conductivity is very low, indicating high resistance to electron flow and high resistivity. Low-loss dielectrics have low loss (ε") and permittivity (ε') values.

Given the values € = 2.5, H = 1, and 0 = 10^(-4) S/m for dry soil, we can calculate the other parameters:

a) At 60 Hz:

Using the formulas: σ = € * 0, ε' = 0 / (2π * f * €), and ε" = σ / (2π * f), we find σ = 0.00025 S/m, ε' = 0, and ε" = 0.0000042.

Conclusion: Dry soil at 60 Hz can be considered a low-loss dielectric.

b) At 1 kHz:

Using the same formulas, we find σ = 0.00025 S/m, ε' = 0, and ε" = 0.0000042.

Conclusion: Dry soil at 1 kHz can be considered a low-loss dielectric.

c) At 1 MHz:

Using the same formulas, we find σ = 0.00025 S/m, ε' = 0, and ε" = 0.0000042.

Conclusion: Dry soil at 1 MHz can be considered a low-loss dielectric.

d) At 1 GHz:

Using the same formulas, we find σ = 0.00025 S/m, ε' = 0, and ε" = 0.0000042.

Conclusion: Dry soil at 1 GHz can be considered a low-loss dielectric.

In summary, based on the given parameters, dry soil can be considered a low-loss dielectric at all the specified frequencies (60 Hz, 1 kHz, 1 MHz, and 1 GHz).

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The maritime economy in the United States generates $282 billion in goods and services, and about three million people are employed by industries reliant on the ocean. Food: The ocean offers more than just seafood; it also contributes to the ingredients of unexpected dishes like peanut butter and soymilk. he relief features of an ocean floor is shown in the attachment below:

The ocean is essential to the world's economy since more than 90% of trade uses maritime routes, and it provides essential ecosystem services in addition to playing a significant role in regulating the climate and weather and supporting millions of people with jobs.

5 reasons why the ocean is very crucial:

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Answer: Arrangement of atoms

Explanation:

A mineral’s crystal shape and cleavage are a direct result of the mineral’s Arrangement of atoms.

A containing organic solid substance or complex with a recognizable carbon content, degree of crystallinity, and components is known as a mineral.

A mineral or minerals species is, generally, a solid physical combination that grows naturally in pure and has a very well-defined chemical makeup together with a particular degree of crystallinity. This was treated as the way the people change the mineral composition.

Atomic planes with weaker atomic bonds than those along several planes are frequently found in crystals. If a hard item is used to strike the mineral in this situation, it will typically break along these planes. The term "separation" refers to this ability to break in particular planes.

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During the overnight hours on a mountainside, when temperatures are dropping, the wind usually responds by blowing downslope.

An inversion is formed during the night when temperatures drop, causing the cold air to flow down the mountain. This is known as a katabatic wind.

The wind usually responds by blowing downslope, which is referred to as the katabatic wind. The mountain valley can get very cold during these windy nights, which is why katabatic winds are common in mountainous regions.

Mountainous areas experience katabatic winds, which are downslope winds caused by the cooling of a mass of air on high terrain. Katabatic winds occur when dense, cold air flows downhill because it is denser than the surrounding warmer air.

The phenomenon can last for a few minutes or a few hours, depending on how long the cold air takes to warm up.

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Answer:

114 degrees

Explanation:

Because when you add 27 and 39 together you get 66. And the interior of a triangle equals 180 so now you must subtract the 66 from 180. And once you do that you get 114 degrees.

Answer:

A and C

Batholiths cooled deep inside Earth.

A geyser sprouts water that is heated deep inside Earth

Answer:

a and c

Explanation:

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If a submarine sandwich shop makes sandwiches with one kind of bread, one protein, one choice of cheese, and one vegetable. The number of different sandwiches that  are possible is: 120.

Let's assume there are:

b=  bread

p= protein

c= cheese

v= vegetables

So,

Total number of sandwiches = b *p * c * v

For instance there would be a total of 11 distinct sandwiches if there were 3 bread options, 4 protein options, 2 cheese options, and 5 vegetable alternatives.

Total number of sandwiches = 3 * 4 * 2 * 5

Total number of sandwiches  = 120

With the specified options for bread, protein, cheese, and veggies, there would be 120 distinct sandwiches that might be made in this scenario.

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Explanation:

The processes used by these actions are known as Weathering and Erosion.

Rainfall (water from the cloud) falls carrying out two major actions, firstly, it dissolves chemicals in the atmosphere and this solution causes chemical reactions on the various surfaces it falls on thereby weakening those surfaces through this action and secondly, by its impact on it wears off the surface. This second action becomes more vivid when you study the impact of a drop of water on a sandy surface. The impact dislodges the soils particles from others.

When there is significant amount of rainfall it leads to runoff (water running on the surface) and this runoff has enough force to move loose soil and rick particles to be deposited at a new location. The movement of these particles causes wear and tear on the surface on which they are moved and over time a new landscape evolves.

Water in the form of ice also causes significant landform changes especially in the temperate regions. This occurs through a process called ice or frost wedging. This essentially means water lodging in cracks and crags of rock get frozen and since frozen water expands it forces the crack to become wider and often times dislodging part of the rock surface.

Answer:

Trenches.

Explanation:

The terms "drowned river valley" and "coastal plain estuary" are used to describe an estuary created when the sea level rises and fills an existing river. When a river valley is inundated due to the sea rising and filling

"Rising and filling" is the process by which a river valley that already contains freshwater is filled with saltwater as a result of a rise in sea level. This can develop over time naturally or as a result of human action such as building levees or dams, which can lead to an accumulation of silt and obstruct the river's ability to drain effectively. The lower portions of the river valley progressively get submerged as the sea level rises, forming an estuary where freshwater and saltwater combine. With the potential to alter the physical aspects of the landscape and create new habitats for marine and freshwater species process "Rising and filling"

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It will be concluded that the presence of Irish elk fossils in a stratigraphic layer indicates that the layers predates more than 10,600 yBP.

The fossils of the Irish Elk is used to determine the date at which the giant deer existed last before its extinction.

The components of stratigraphic and biostratigraphic dating are used in determining the extent of the date.

However, the likely conclusion drawn will be that the layers where the fossil is found predates more than 10,600 yBP.

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Answer:

Turn off all electricity, was and water; unplug all appliances. Keep your emergency kit close at hand. Bring your family into the strongest part of thr house. Keep listening to the radio for cyclone updates

Density gradient has to do with the spatial variation in density over an area.

It should be noted that density gradient simply means the spatial variation in density over a particular area.

In this case, this is a form of essay as you're to compare the density gradient in residential housing for Campton Hills versus Chicago.

Find out the number of houses in the area and the number of people that each household has. This will be vital to know the density gradient.

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Answer:

B

Explanation:

Answer:

1. Requires protected head ditches and waste-water ditches. Since the furrows run across the slope, these ditches generally rim directly down slope. To prevent erosion, you may need pipes or flumes for head ditches and drops, underground pipelines, or other structures to protect waste-water ditches.

2. Requires equipment turns on the field. Equipment used in planting, cultivating, and harvesting has to be turned on the field at the end of the spur, spike, and fill furrows.

3. Requires engineering layout. Fields must be carefully planned and then planted between staked guidelines, running across the field on the proper irrigation grade.

4. Requires control of water in furrows. A break may damage lower furrows and cause erosion.

Explanation:

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Having students substitute sounds for one another in a spoken word is an instructional activity that would be most appropriate for students who have a relatively high level of phonemic awareness.

Phonemic awareness refers to the particular ability to focus on and control individual sounds (phonemes) in spoken language. The smallest unit of spoken language is a phoneme. Phonemes combine to form syllables and words. For example, the word "bat" has his three phonemes of /b//a//t/. English has 44 phonemes, including sounds defined by letter combinations such as /th/.

Recognizing phonemes is important as it is the basis for spelling and word recognition. Phonemic awareness is one of the best ways to predict how well a child will learn to read and write in her first two years of school.

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Answer:

b. false

Explanation:

While 0.25 inches of rain may provide some moisture to the environment, it is rarely enough to eliminate the risk of a fire starting. Factors such as vegetation dryness, humidity levels, wind conditions, and the presence of flammable materials all play essential roles in determining fire risk. Even if a thunderstorm produces some rain, it does not guarantee complete safety from fire ignition. Multiple factors and local conditions must be considered to assess the fire risk accurately.

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