Human Carbon Emissions

What evidence would support the claim that an increase in human population contributes to the emission of greenhouse gases?

• Data showing that greenhouse gas production has leveled off once the global population reached a certain number

• Data showing that the amount of greenhouse gases produced varies with the level of development a country has reached

• Data showing that greenhouse gas emissions for each individual human has dropped over the last thirty years

• Data showing that the ten countries with the largest populations are the ten countries that produce the most greenhouse gases

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The production of different foods and burning of fossil fuels has increased certain gas __________ over time.

• simulations

• emissions

• fossil fuels

• increasing

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The main human activity that has affected Earth's climate is the burning of __________.

• simulations

• emissions

• fossil fuels

• increasing

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The graph shows data on the carbon dioxide emitted when producing different foods. Which of the following claims is supported by the data?

• The highest carbon emissions come from the production of dairy products.

• Producing 1 lb of carrots results in more carbon dioxide emissions than producing 1 lb of tomatoes.

• Producing food from plants results in more carbon dioxide emissions than from animals.

• Carbon emissions are higher for the production of beef than for chicken and pork combined.

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The pie chart shows percentages of carbon dioxide (CO2emissions by sector). The greatest reduction in carbon dioxide emissions could be achieved if it were possible to reduce, by half, which source of emissions?

• Land use

• Energy production

• Waste

• Industrial processes

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The burning of fossil fuels contributes to the addition of greenhouse gases to the atmosphere. These gases trap thermal energy in the Earth’s atmosphere. Which of the following would be the most reasonable changes that could result from an increase in the burning of fossil fuels?

• The air all over the globe would become dirtier.

• There would be a global rise in temperatures.

• Ecosystems would become more diverse.

• Rates of photosynthesis would decrease.

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Over the last 100 years, there has been a significant increase in atmospheric temperatures. Which human activity has contributed the greatest amount of greenhouse gases during this time period?

• Deforestation of the Amazon rain forest has contributed the greatest amount of greenhouse gases to the atmosphere over the last 100 years.

• Mining for coal has contributed the greatest amount of greenhouse gases to the atmosphere over the last 100 years.

• The burning of fossil fuels by industry, transportation, and energy has contributed the greatest amount of greenhouse gases to the atmosphere over the last 100 years.

• Drilling for oil and natural gas has contributed the greatest amount of greenhouse gases to the atmosphere over the last 100 years.

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The graph shows data on the carbon dioxide emitted when producing different foods. Which of the following claims is supported by the data?

• The highest carbon emissions come from the production of dairy products.

• Producing 1 lb of salmon results in less CO2 emissions than producing 1 lb of pork.

• Producing food from animals results in less carbon dioxide emissions than from plants.

• The highest carbon emissions come from the production of beef products.

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NGSS.HS-ESS2-6

The pie chart shows percentages of carbon dioxide (CO2 ) emissions by sector. The greatest reduction in carbon dioxide emissions could be achieved if it were possible to reduce, by half, which source of emissions?

• Agriculture

• Electricity

• Commercial & Residential

• Industry

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NGSS.HS-ESS3-5

NGSS.HS-ESS3-1

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The burning of fossil fuels contributes to the addition of greenhouse gasses to the atmosphere. These gases trap thermal energy in the earth’s atmosphere. Which of the following would be the most reasonable changes that could result from an increase in the burning of fossil fuels?

• The air all over the globe would become dirtier

• There would be a global rise in temperatures

• Ecosystems would become more diverse

• Rates of photosynthesis would decrease

Tags

NGSS.HS-ESS3-5

NGSS.HS-ESS2-4

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