global warming test

Which of the following statements about CO2 is not true?

CO2 is harmful to the planet.

What is CO2?

Carbon Dioxide

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

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

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

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

What is the number one source of greenhouse gas emissions?

Electricity

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?

Energy

Climate is best described as the degree or intensity of heat present in a region.

False

Fossil fuels are formed from inorganic materials and are not renewable.

False

The amount of carbon dioxide in the atmosphere is steadily decreasing each year.

False

Based on classroom readings, activities, and discussions, what is the best conclusion that can be reached?

Human activity is the cause of increasing global temperatures.

Why are scientists so concerned about rising levels of CO2? What is it about this particular gas that makes it concerning?

It can trap heat.

Which natural processes contribute to greenhouse gas emissions? Mark all correct answers.

Respiration Weathering of Rocks Volcanic Eruptions Livestock

What change has occurred since the Industrial Revolution that has potentially caused a change in Earth's average climate?

The burning of fossil fuels

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?

There would be a global rise in temperatures.

Why do climatologists study ice cores from ancient glaciers?

To find out what was found in the ancient atmosphere

Climate change can impact both biotic and abiotic factors on Earth.

True

Greenhouse gases are dangerous because they trap energy of the Sun and hold the heat it creates close to Earth.

True

Human activity can produce both positive and negative impacts on the environment.

True

There is a relationship between the change in mass of land ice and the change in sea height.

True

A steady increase in global temperature has been recorded between 1900 and today. Before concluding that this rise in temperature is the result of the increased burning of fossil fuels since that same time, which of the following questions would have to be answered?

What, if any, temperature rise was occurring prior to 1900?

Which statement best defines global warming?

a gradual increase in the average temperature of Earth's climate system

What are the THREE most abundant greenhouse gases in our atmosphere?

carbon dioxide water vapor methane

How do greenhouse gases absorb radiation?

they are electrically lopsided

Which of the following items are climate control factors? Mark all correct answers.

latitude Elevation Nearby Water Vegetation Prevailing Winds Topography