Atmosphere and Weather

Which of the following gases is considered an enhanced greenhouse gas?

• Oxygen

• Nitrogen

• Methane

• Carbon monoxide

Answer explanation

Methane is considered an enhanced greenhouse gas, as it has a much stronger heat-trapping effect than either oxygen or nitrogen. Carbon monoxide is not typically considered a greenhouse gas, as its effects on atmospheric warming are relatively minor.

Which gas is released by rice paddies and contributes to the enhanced greenhouse effect?

• Carbon dioxide

• Methane

• Nitrous oxide

• Water vapor

Answer explanation

Methane is released by rice paddies and contributes to the enhanced greenhouse effect, as it is a potent greenhouse gas.

Which gas is responsible for the "ozone hole" over Antarctica?

• Carbon dioxide

• Chlorofluorocarbons (CFCs)

• Methane

• Nitrous oxide

Answer explanation

Chlorofluorocarbons (CFCs) are responsible for the depletion of ozone in the atmosphere, leading to the "ozone hole" over Antarctica.

Which gas is a byproduct of burning fossil fuels and is a major contributor to the enhanced greenhouse effect?

• Nitrogen

• Oxygen

• Carbon dioxide

• Sulfur dioxide

Answer explanation

Carbon dioxide is a byproduct of burning fossil fuels and is a major contributor to the enhanced greenhouse effect, as it traps heat in the atmosphere.

Which of the following best describes the greenhouse effect?

• The absorption of heat by the Earth's surface

• The reflection of heat by the Earth's atmosphere

• The trapping of heat by the Earth's atmosphere

• The release of heat by the Earth's atmosphere

Which of the following is NOT a greenhouse gas?

• Carbon dioxide

• Nitrogen

• Methane

• Water vapor

Answer explanation

Nitrogen is not a greenhouse gas, as it does not absorb or re-emit heat.

Which of the following is NOT a likely consequence of global warming caused by greenhouse gas emissions?

• More frequent and severe heatwaves

• Sea-level rise

• Increased crop yields

• Increased frequency and intensity of storms

Answer explanation

Increased crop yields is not a likely consequence of global warming caused by greenhouse gas emissions, as rising temperatures and changing weather patterns are likely to have negative impacts on agriculture.

Which of the following best describes the relationship between greenhouse gas emissions and global temperature?

• The relationship is weak and uncertain

• There is no relationship between the two

• Greenhouse gas emissions cause global temperature to decrease

• Greenhouse gas emissions cause global temperature to increase

Which of the following is an example of a natural source of greenhouse gas emissions?

• Transportation

• Deforestation

• Livestock

• Volcanic eruptions

What is the term used to describe the energy gained by a location through solar radiation during daylight hours?

• Insolation

• Albedo

• Greenhouse effect

• Convection