Burning of fossil fuels has changed the atmosphere by

increasing the concentration of carbon dioxide

reducing the CFCs in the atmosphere

increasing the concentration of ozone in the atmosphere

It is projected that an increase in carbon dioxide levels in the atmosphere will MOST LIKELY lead to

lower-than-average hurricane rates

lower-than-average ocean temperatures

higher-than-average ice levels in arctic.

Nuclear fission reactors work off of a chain reaction that produces energy. This type of energy production is often viewed as a viable option to burning fossil fuels. What is an advantage to using nuclear power over fossil fuels?

Nuclear power does not produce smoke or carbon dioxide.

Nuclear power plants are less expensive to build than coal plants

Nuclear power produces a large amount of waste.

Fuel made from plants are called biofuel. These fuels can be renewed in anywhere from 2 to 100 years depending on the plants used to create the fuel. Compared to fossil fuels, biofuels

take a much shorter time to be renewed.

take a much longer time to be renewed.

take a similar amount of time to be renewed.

are both considered nonrenewable sources of energy.

Natural gas is very abundant in the United States. Compared to other fossil fuels, which describes the waste products of the combustion of natural gas?

Natural gas has no solid waste products, but produce large amount of greenhouse gases.

Natural gas has no waste products.

Natural gas produces greater amounts of solid waste.

Natural gas produces large quantities of radioactive waste

Carbon dioxide is constantly exchanged among the atmosphere, ocean, and land. Carbon dioxide is produced and absorbed by microorganisms, plants, and animal by natural processes which help maintain a natural balance. However, since the beginning of Industrial Revolution, human activities have contributed substantially to Carbon dioxide gases in the atmosphere. Which conclusion might be drawn between the relationship found in the graphs of Global Carbon Emissions and Global Temperatures over the past 150 years.

increased Carbon emission from human activities are directly correlated to increased global temperatures

decreased Carbon emission from human activities are directly correlated to decreased global temperatures

increased Carbon emission from human activities are directly correlated to decreased global temperatures

decreased Carbon emission from human activities are directly correlated to increased global temperatures

In 2015, about ten percent of total U.S. energy consumption was from renewable energy sources. Renewable energy plays an important role in reducing greenhouse gas emissions. When renewable energy sources are used, the demand for fossil fuels is reduced. The town where Sanjay and his family live wants to cut back on their use of non-renewable resources at home. The town is located in Texas. The town's people want to cut their dependency on non-renewable resources. They also want to minimize the amount of particulate matter they put into the atmosphere. Texas is one of the leading states in wind power, but the town wants to add other renewable, non-polluting, energy resources to their energy plan. What resources, other than wind energy, fit the bill?

solar, hydroelectric, and geothermal

hydroelectric power, biomass, and nuclear

biomass, natural gas, solar, and hydroelectric

The greenhouse effect is an important part of Earth’s climate system. It keeps higher average temperatures on Earth than we would expect from just direct solar heating. Most of the incoming solar radiation is short wave, high frequency wavelengths. This radiation is absorbed and converted to long wave, low frequency waves at or near the surface of the earth. Heat energy is absorbed by atmospheric gases, including water vapor, carbon dioxide, nitrous oxide, and methane. The greenhouse effect refers to the holding of heat in Earth’s atmosphere due to this absorption. Some human activities increase the amount of greenhouse gases, primarily CO 2 , and this results in additional heat being retained in the atmosphere. Since 1980 global surface temperatures have increased sharply. This is believed to be the Earth's response to increasing concentrations of greenhouse gases, such as carbon dioxide. In 1981 James Hansen, and his colleague at NASA, Andy Lacis, built a simple climate model to simulate how changes in the atmosphere cause Earth's average temperature to change over time. Hansen and Lacis adjusted the inputs to simulate the influence of all known human-made greenhouse gases except carbon dioxide, including CFCs, methane, nitrous oxide, and ozone, to see if their net effect could be felt on a global scale in Earth’s climate system. Hansen and Lacis found that the warming effect of all those gases added together is comparable to the warming effect of carbon dioxide alone. Hansen commented: "To questions about whether this warming is natural or just a fluctuation, the answer has become clear: the world is getting warmer. This fact agrees so well with what we calculate with our global climate model that I am confident we are looking at warming that is mainly due to increasing human- made greenhouse gases." On Earth, human activities are changing the natural greenhouse effect. Over the last century the burning of fossil fuels in the forms of coal and oil has increased the concentration of atmospheric carbon dioxide. Remember the combustion of carbon-based products produce carbon dioxide as a by-product. To a smaller extent, the clearing of land for agriculture, industry, and other human activities have increased concentrations of greenhouse gases. After reading the passage and reviewing the data it appears that, although the results of changing the natural atmospheric greenhouse are difficult to predict, certain effects seem likely. What are they?

The oceans will warm and partially melt glaciers and other ice, increasing sea level.

Warmer conditions will probably lead to more evaporation and precipitation overall.

Higher temperatures and shifting climate patterns may alter the makeup of natural communities.

A reasonable extrapolation of the temperature anomaly using the graph of Global Surface Temperature, if the current trend continues to the year 2020 would be 2.5 o C.

As snow and ice cover on Earth increases, solar reflection will also decrease.

Human Impact Review

Authored by Whitney Gunter

Science

5th - 6th Grade

NGSS covered

Used 149+ times

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22 questions

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MULTIPLE CHOICE QUESTION

1 min • 1 pt

The graph indicates what about the relationship between atmospheric carbon dioxide and time

over time, the amount of atmospheric carbon dioxide increases

over time, the amount of atmospheric carbon dioxide decreases

over time, the amount of atmospheric carbon dioxide stays the same

over time, the amount of atmospheric carbon dioxide does not change

Tags

NGSS.MS-ESS3-5

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Reducing the emissions of which gas will lead to reducing the greenhouse effect?

oxygen

nitrogen

argon

carbon dioxide

Tags

NGSS.HS-ESS2-6

NGSS.HS-ESS3-5

MULTIPLE CHOICE QUESTION

1 min • 1 pt

An increase in Earth’s average temperature due to the buildup of carbon dioxide and other gases in Earth's atmosphere is called

ozone buildup.

global warming

bioremediation.

thermal pollution

Tags

NGSS.HS-ESS2-6

NGSS.HS-ESS3-5

NGSS.HS-ESS2-4

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Many scientists are convinced that the growing human population is contributing to the gradual warming trend that is occuring on planet Earth. According to the researchers, which human activity is MOST likely to be a contributing factor in global warming?

Humans have added carbon dioxide to the atmosphere by burning fossil fuels.

Humans have released vast quantities of chemicals that have created excess ozone in the upper atmosphere.

Humans have changed the chemistry of the world's oceans by the use of phosphates and nitrogen-containing compounds.

Humans have created acid rain by releasing sulfuric acids into the air in the exhaust from factories and power plants.

Tags

NGSS.HS-ESS2-6

NGSS.HS-ESS3-5

NGSS.HS-ESS3-1

NGSS.HS-ESS3-6

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Ice cores from Antarctica allow scientists to measure the amounts of atmospheric carbon dioxide from long ago. These samples would BEST provide evidence for

climate change.

continental drift

the big bang theory.

magnetic field reversal.

Tags

NGSS.HS-ESS2-6

NGSS.HS-ESS3-5

MULTIPLE CHOICE QUESTION

1 min • 1 pt

According to the theory of global warming, which statement is the MOST LIKELY reason for the current climate change?

The Sun is getting hotter.

The Sun is moving farther from Earth.

The atmosphere is reradiating more heat to Earth

The atmosphere is reradiating more heat to space

Tags

NGSS.HS-ESS3-5

NGSS.HS-ESS2-4

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Coal, oil, and natural gas

are renewable natural resources

are in very short supply for consumers.

release carbon dioxide when they are burned

are clean fuels that contribute little to pollution

Tags

NGSS.HS-ESS2-6

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Human Impact Review

The graph indicates what about the relationship between atmospheric carbon dioxide and time

Reducing the emissions of which gas will lead to reducing the greenhouse effect?

An increase in Earth’s average temperature due to the buildup of carbon dioxide and other gases in Earth's atmosphere is called

Many scientists are convinced that the growing human population is contributing to the gradual warming trend that is occuring on planet Earth. According to the researchers, which human activity is MOST likely to be a contributing factor in global warming?

Ice cores from Antarctica allow scientists to measure the amounts of atmospheric carbon dioxide from long ago. These samples would BEST provide evidence for

According to the theory of global warming, which statement is the MOST LIKELY reason for the current climate change?

Coal, oil, and natural gas

________________ is a source of energy that utilizes uranium-235 in a fission reaction to vaporize water. The steam is then used to turn turbines to generate electricity.

Burning of fossil fuels has changed the atmosphere by

Which of these is the best example of a renewable resource?

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