Climate Change Assessment Quiz

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What is the ecological niche of a species?

Food supply

Length of survival

Habitat

Role in the ecosystem (correct)

What type of species normally live and thrive in a particular ecosystem?

Native species (correct)

Specialist species

Nonnative species

Keystone species

Why is the concept of indicator species important in ecology?

They have a large effect on other species in an ecosystem.

They provide warnings about damage to ecosystems. (correct)

Indicator species are always at the top of the food chain.

Indicator species are vital for the overall health of the ecosystem.

What is the role of keystone species in an ecosystem?

Keystone species influence the type and abundance of other species. Signup and view all the answers

Why is predation considered beneficial at the population level?

It removes sick, aged, weak, or least fit members of a population. Signup and view all the answers

Which atmospheric layer contains most of the mass of the earth's air?

Troposphere Signup and view all the answers

What is the composition of the troposphere?

Nitrogen and oxygen Signup and view all the answers

Why might melting permafrost accelerate climate change?

Methane gas stored in the frozen ground will be released. Signup and view all the answers

Which of the following statements about ozone depletion is false?

Ozone thinning levels remain steady over seasons. Signup and view all the answers

Which statement is not true about CFCs?

Ocean acidification is responsible for the breakdown of ozone to molecular oxygen. Signup and view all the answers

Where do air pollutants come from?

Both human and natural sources. Signup and view all the answers

Has the quality of outdoor air in most developed countries greatly improved over the past 30 years?

True Signup and view all the answers

Has an emissions credit trading system in place since 1990 significantly helped reduce sulfur dioxide emissions from electrical power plants?

False Signup and view all the answers

What is the main focus of the problem related to climate change in the text?

The quick rate of change in average global temperature. Signup and view all the answers

In the short term, which climate change effect may benefit some humans?

Melting glacial ice Signup and view all the answers

Which strategy is mentioned as an output strategy for combating climate change?

Energy efficiency laws Signup and view all the answers

How does the use of biochar help remove carbon from the atmosphere?

Keeping carbon in the soil for up to 1,000 years Signup and view all the answers

What is suggested as the quickest and cheapest way to slow the buildup of carbon dioxide in the atmosphere?

Put a price on carbon dioxide emissions Signup and view all the answers

Which of the following is NOT identified as a potential benefit of some humans from climate change effects?

Biodiversity loss Signup and view all the answers

What environmental problem results in respiratory ailments, aquatic fish kills, weakening of forest ecosystems, and damage to buildings and monuments?

Acid deposition Signup and view all the answers

Which international agreement aims to cut greenhouse gas emissions and slow global warming?

Kyoto Protocol Signup and view all the answers

What is the term used to describe an atmospheric carbon dioxide level of 450 ppm where climate change becomes irreversible?

Tipping point Signup and view all the answers

What are Chlorofluorocarbons (CFCs) and where have they been widely used?

Manmade compounds in refrigerants and sprays Signup and view all the answers

Which of the following is NOT a major class of air pollutants?

Hydrocarbon emissions Signup and view all the answers

What are three sources of nitrogen oxides, one of the major classes of air pollutants?

Industry, motor vehicles, fertilizers Signup and view all the answers