How many rolls of wallpaper each 8 Yards long and 12 inches wide, will paper the sides of a room 13.2 feet by 17.7 feet and 10 feet high, deducting 138 ft^2 for doors and windows?

Answer:

All rocks except obsidian and coal are made of minerals. (Obsidian is a volcanic rock made of glass and coal is made of organic carbon.) Most rocks contain several minerals in a mixture characteristic of the particular rock type. When identifying a rock you must first identify the individual minerals that make up that rock.

Minerals are naturally occurring, inorganic solids with a definite chemical composition and a crystal lattice structure. Although thousands of minerals in the earth have been identified, just ten minerals make up most of the volume of the earth’s crust—plagioclase, quartz, orthoclase, amphibole, pyroxene, olivine, calcite, biotite, garnet, and clay.

Together, the chemical formula (the types and proportions of the chemical elements) and the crystal lattice (the geometry of how the atoms are arranged and bonded together) determine the physical properties of minerals.

The chemical formula and crystal lattice of a mineral can only be determined in a laboratory, but by examining a mineral and determining several of its physical properties, you can identify the mineral. First, you need to become familiar with the physical properties of minerals and how to recognize them.

Minerals can be identified by their physical characteristics. The physical properties of minerals are related to their chemical composition and bonding. Some characteristics, such as a mineral’s hardness, are more useful for mineral identification. Color is readily observable and certainly obvious, but it is usually less reliable than other physical properties.

Answer:

b

Explanation:

Answer:

Sea floor spreading is the phenomena of new sea floor being created through mid-ocean ridges. Wegener proposed that the continents themselves move, which is untrue. It is the tectonic plates that move.

Explanation: early marine geologists to deduce that the mid-ocean ridges were formed by seafloor volcanoes

Answer:

the ozone layer

Explanation:

According to scientists, Earth's ozone layer will eventually be fully restored.

The ozone layer is a protective layer of gas in the atmosphere that blocks harmful ultraviolet radiation from reaching the Earth's surface.

It has been damaged over the years due to the effects of human activities, such as the use of chlorofluorocarbons in aerosol sprays and certain industrial processes. However, the international community has taken steps to reduce these activities and the ozone layer is slowly recovering.

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The absolute value of -11 in this particular question is 11

In mathematics, absolute value refers to the magnitude of a number, when whatsoever sign the number carries is ignored. The absolute value of a number is always a positive number or zero.

For example, the absolute value of -3 is 3, because -3 is three units away from zero on the number line. Also, the absolute value of 3 is also 3, because 3 is three units away from zero on the number line.

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The hubble space telescope is covered by pieces of Multi Layer Insulation that provides it with the blanket like cover which protects the telescope by reflecting the sun's energy during the daylight portion of Hubble's orbit around the Earth the cover also provides the telescope with ability to retain just enough heat to keep the telescopes components from getting too cold during its night-time orbit, and protecting the telescope from radiation and orbital debris. HST can be used to explore everything that it is capable of being explored. While the NGST is more technologically advanced, HST is better known among scientists worldwide. Scientists have a greater understanding of HST. HST is very reliable and has a successful record.

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Answer:

The core is made of two layers: the outer core, which borders the mantle, and the inner core. The boundary separating these regions is called the Bullen discontinuity. The outer core, about 2,200 kilometers (1,367 miles) thick, is mostly composed of liquid iron and nickel.

Explanation:

Answer:

The Horn of Africa.

Explanation:

it lies along the southern boundary of the Red Sea and extends hundreds of kilometers into the Gulf of Aden, Somali, Sea and Guardafui Channel.

Answer:

Rainforests do not experience winter or any of the other four seasons

Explanation:

Hope this helps

Answer:

The teachers are boring

Explanation:

Brainliest?

Answer:

True

Explanation:

The Aegean Sea is part of the Mediterainian Sea between Greece and Turkey. So, this is true.

On December 21st, the Sun's tangent rays hit the Tropic of Capricorn at a latitude of 23.5 degrees South and the Arctic Circle at a latitude of 66.5 degrees North.

The Tropic of Capricorn is a line of latitude located 23.5 degrees south of the equator. It's also one of the five major circles of latitude on Earth, the others being the Arctic Circle, Antarctic Circle, Equator, and Tropic of Cancer. It's named after the constellation Capricornus, which was once overhead at this position during the winter solstice.

The Arctic Circle is a line of latitude that circles the Earth at approximately 66.5 degrees north of the equator. It's one of the five major circles of latitude on Earth, the others being the Antarctic Circle, Equator, Tropic of Cancer, and Tropic of Capricorn.

It marks the southernmost point at which the sun can be seen at midnight on the day of the summer solstice and the northernmost point at which the sun can be seen at noon on the day of the winter solstice.

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Answer:

Neutral oxides show neither basic nor acidic properties and hence do not form salts when reacted with acids or bases, e.g., carbon monoxide (CO); nitrous oxide (N2O); nitric oxide (NO), etc., are neutral oxides.

Answer:

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MgO

Explanation:

Zinc oxide ZnO, Tin(IV) oxide or SnO2, Aluminum oxide Al2O3  are all amphoteric substances, meaning they can react with both acids and bases.

But in MgO, Magnesium is a metal and like most of the metals, it forms basic oxides. It is a basic oxide and contains oxide ions.

Hence it will not react with both acid and Bases

Hurricanes that form in the eastern Pacific, typically off the coast of central Mexico, tend to move west-northwest away from the U.S. West Coast because of the trade winds, which help steer hurricanes toward the East Coast and away from the West Coast.

What are hurricanes?

A hurricane is a large rotating storm with swift winds that develops over tropical regions' warm seas. Hurricanes have an eye in the center with low air pressure and sustained winds of at least 74 miles per hour. A tropical cyclone is the designation given to a hurricane in scientific terms. These powerful storms frequently begin as tropical waves, which are low pressure systems that sweep over wet tropical regions and may intensify shower and thunderstorm activity. These waves frequently occur over the ocean. The elements for the formation of a hurricane include thunderstorms, warm ocean water, and low winds.

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When angle ACB is 49 degrees, the approximate distance between A and B is 3420 miles. when angle ACB is 4 degrees, the approximate distance between A and B is 280 miles.

A) For angle ACB = 49 degrees:
Step 1: Convert the diameter of Earth (8000 miles) to its radius, since we'll be working with a circular geometry. The radius of Earth is half the diameter, so it's 4000 miles.
Step 2: Use the formula for finding the arc length (distance between A and B) on a circle, which is:
Arc length = Radius x Angle (in radians)
Step 3: Convert angle ACB from degrees to radians:
Radians = Degrees x (π/180)
Radians = 49 * (π/180) ≈ 0.855 radians
Step 4: Calculate the arc length (distance between A and B):
Arc length = 4000 miles x 0.855 radians ≈ 3420 miles
So, when angle ACB is 49 degrees, the approximate distance between A and B is 3420 miles.
B) For angle ACB = 4 degrees:
Step 1: We already know the radius of Earth is 4000 miles.
Step 2: Convert angle ACB from degrees to radians:
Radians = 4 x (π/180) ≈ 0.070 radians
Step 3: Calculate the arc length (distance between A and B):
Arc length = 4000 miles x 0.070 radians ≈ 280 miles
So, when the angle ACB is 4 degrees, the approximate distance between A and B is 280 miles.

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Answer:

D

Explanation:

FBD= 74 any degrees under 90 is called acute

EBC= 100 any degrees above 90 is called obtuse

Choosing to cultivate sugar cane from existing plantations instead of establishing new plantations in the rainforest would have several positive outcomes.

It would help preserve biodiversity, reduce deforestation, and limit carbon emissions associated with land-use change.

If bio-credits are mismanaged, they can become a burden. Lack of robust regulations and monitoring may lead to greenwashing and the exploitation of loopholes, undermining the integrity of the system.

Additionally, bio-credits can potentially incentivize the conversion of diverse ecosystems into monoculture plantations, leading to ecological imbalances and negative social impacts on local communities.

Proper governance and stringent criteria are necessary to ensure the positive environmental and social outcomes of bio-credits.

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Answer:

All the human causes of global environmental change happen through a subset of proximate causes, which directly alter aspects of the environment in ways that have global effects.

Explanation:

The important proximate human causes of global change are those with enough impact to significantly alter properties of the global environment of potential concern to humanity. The global environmental properties now of greatest concern include the radiative balance of the earth, the number of living species, and the influx of ultraviolet (UV-B) radiation to the earth's surface (see also National Research Council, 1990b).

Answer:

The Paleozoic Era, which ran from about 542 million years ago to 251 million years ago, was a time of great change on Earth. The era began with the breakup of one supercontinent and the formation of another. Plants became widespread. And the first vertebrate animals colonized land.

Life in the Paleozoic

The Paleozoic began with the Cambrian Period, 53 million years best known for ushering in an explosion of life on Earth. This "Cambrian explosion" included the evolution of arthropods (ancestors of today's insects and crustaceans) and chordates (animals with rudimentary spinal cords).

In the Paleozoic Era, life flourished in the seas. After the Cambrian Period came the 45-million-year Ordovician Period, which is marked in the fossil record by an abundance of marine invertebrates. Perhaps the most famous of these invertebrates was the trilobite, an armored arthropod that scuttled around the seafloor for about 270 million years before going extinct.

Answer:

The Paleozoic Era, which lasted around 542 million years and ended 251 million years ago, was a period of significant change on Earth. The era started with the disintegration of one supercontinent and the emergence of another. Plants spread over the world. And the earliest vertebrate animals began to inhabit the land.

The Paleozoic Era

The Paleozoic Era began with the Cambrian Period, which lasted 53 million years and is best remembered for ushering in an explosion of life on Earth. The evolution of arthropods (ancestors of today's insects and crustaceans) and chordates was part of the "Cambrian boom" (animals with rudimentary spinal cords).

Life flourished in the waters during the Paleozoic Era. Following the Cambrian Period was the 45-million-year Ordovician Period, which is distinguished by an abundance of marine creatures in the fossil record.The trilobite, an armored arthropod that scurried over the seafloor for nearly 270 million years until becoming extinct, was perhaps the most famous of these invertebrates.

Explanation:

Answer:

A - Deforestation

D - Mestizos

Explanation:

A - Deforestation was one of the cultural impacts of European colonization in Latin America because the colonizers engaged in large-scale logging and farming, which led to the destruction of many forests.

D - Mestizos, people of mixed European and indigenous ancestry, were another cultural impact of European colonization in Latin America. This was because the colonizers intermarried with and had children with indigenous people, leading to the creation of a new cultural group.

Explanation:

Soil minerals form the basis of soil. They are produced from rocks (parent material) through the processes of weathering and natural erosion. Water, wind, temperature change, gravity, chemical interaction, living organisms and pressure differences all help break down parent material

Answer:

The creation of new zones as cities grow could the sector model account better than the concentric zone model. It involves the growth of the city.

Explanation:

What is the sector model?

The sector model is a model aimed at understanding the growth of a city, which was developed by Homer Hoyt.

According to this model (sector model), the cities should have an outward/external progression of their growth.

The sector model can be observed in Chicago city and contraposes with the concentric model of growth.

If Star X were moved to be twice as close to Earth as it is now, c). the apparent magnitude number would decrease and absolute magnitude number would decrease.

This is because the apparent magnitude is a measure of how bright a star appears from Earth, and moving the star closer would make it appear brighter.

However, the absolute magnitude is a measure of the intrinsic brightness of the star, and moving it closer would not change that.

Therefore, the difference between the apparent and absolute magnitudes would decrease, resulting in a decrease in both numbers. The answer is option c.

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The rate of faulting has not been constant over time, as it has been influenced by various geological processes and external factors such as changes in stress, erosion, and deposition.

Plate tectonics theory explains that the Earth's lithosphere is composed of large tectonic plates that move and interact with each other. When plates move against each other, they create stress that can lead to earthquakes and faulting.

The rate of faulting can be influenced by changes in the stress that the plates experience, which in turn can be caused by changes in the movement of tectonic plates, changes in the weight of material on the Earth's surface, or changes in the strength of the rock.

Over geological time, the rate of faulting can also be influenced by erosion and deposition, which can alter the stress patterns within the rock. For example, the weight of sediment deposited on a fault can change the stress and pressure on the rocks, which can affect the rate of faulting.

Additionally, the rate of faulting can be influenced by changes in the Earth's climate, which can cause changes in the hydrological cycle and the distribution of water on the Earth's surface. Therefore, the rate of faulting is a complex and dynamic process that can be influenced by a variety of geological and environmental factors.

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Answer:

Passing literacy tests to vote

Explanation:

The first one should is actually against the law and against the Voting Act of 1965

Answer:

passing literacy tests to vote

Explanation:

B)

A weather map of the United States would most likely label this air mass as a Pacific Maritime air mass. This type of air mass is characterized by cool winter temperatures, moist surface air, abundant cloud cover, and moderated temperatures in the summer months.

It originates over the northern Pacific Ocean and moves southward when a high pressure system develops over northwest Canada. This high pressure system causes prevailing western winds to push the air toward the United States. The air mass is heated and cooled much more slowly than other air masses, leading to its more stable weather conditions.

The Pacific Maritime air mass is responsible for much of the precipitation along the West Coast of the United States. The air mass is therefore a primary influence on weather patterns in the Northern and Western parts of the United States.

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Correct question is:

an air mass that originates over the northern pacific ocean and moves southward over the united states would most likely, be labeled on a weather map. explain.

Drought is a recurring natural disaster that affects many countries in southern Africa, leading to food insecurity, water scarcity, and other socio-economic impacts. Here are 30 possible causes of drought in southern Africa:

These causes are interrelated and complex, and their impacts vary depending on the specific location, season, and vulnerability of different communities. To address the root causes of drought and build resilience, a multi-disciplinary and participatory approach is needed, involving governments, civil society, the private sector, academia, and local communities.

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Answer:

Explanation:

In common language, the terms "rich" and "poor" are often used in a relative sense: A "poor" person has less income, wealth, goods, or services than a "rich" person. When considering nations, economists often use gross domestic product (GDP) per capita as an indicator of average economic well-being within a country. GDP is the total market value, expressed in dollars, of all final goods and services produced in an economy in a given year. In a sense, a country's GDP is like its yearly income. So, dividing a particular country's GDP by its population is an estimate of how much income, on average, the economy produces per person (per capita) per year. In other words, GDP per capita is a measure of a nation's standard of living. For example, in 2016, GDP per capita was $57,467 in the United States, $42,158 in Canada, $27,539 in South Korea, $8,123 in China, $1,513 in Ghana, and $455 in Liberia (Figure 1).

Because GDP per capita is simply GDP divided by the population, it is a measure of income as if it were divided equally among the population. In reality, there can be large differences in the incomes of people within a country. So, even in a country with relatively low GDP, some people will be better off than others. And, there are poor people in very wealthy countries. In 2013 (the most recent year comprehensive data on global poverty are available), 767 million people, or 10.7 percent of the world population, were estimated to be living below the international poverty line of $1.90 per person per day.3 Whether for people or nations, the key to escaping poverty lies in rising levels of income. For nations specifically, which measure wealth in terms of GDP, escaping poverty requires increasing the amount of output (per person) that their economy produces. In short, economic growth enables countries to escape poverty.