The Greenhouse Effect and Earth's Energy Balance Quiz

Question 1

Which best describes the greenhouse effect?

Accepted Answer

The process by which Earth's atmosphere traps heat from the Sun, warming the planet

Question 2

The greenhouse effect is always harmful and has no natural role in supporting life on Earth.

Accepted Answer

false

Question 3

Which of the following is the primary source of energy that drives Earth's energy balance?

Accepted Answer

The Sun

Question 4

Carbon dioxide, water vapor, and methane are all examples of greenhouse gases.

Accepted Answer

true

Question 5

When sunlight reaches Earth's surface, which of the following correctly describes what happens to that energy?

Accepted Answer

Some is reflected, some is absorbed by the atmosphere, and some is absorbed by Earth's surface

Question 6

What type of radiation does Earth's surface emit after absorbing energy from the Sun?

Accepted Answer

Infrared radiation

Question 7

Greenhouse gases trap heat by absorbing infrared radiation emitted by Earth's surface and re-emitting it in all directions, including back toward Earth.

Accepted Answer

true

Question 8

Which human activity is the largest contributor to increasing carbon dioxide levels in Earth's atmosphere?

Accepted Answer

Burning fossil fuels such as coal, oil, and natural gas

Question 9

If Earth's energy input from the Sun equals its energy output back to space, Earth's average temperature remains stable.

Accepted Answer

true

Question 10

How does an increase in greenhouse gases affect Earth's energy balance?

Accepted Answer

More heat is trapped in the atmosphere, causing Earth to warm

Question 11

Which layer of Earth's atmosphere contains most of the greenhouse gases that contribute to the greenhouse effect?

Accepted Answer

Troposphere

Question 12

Deforestation contributes to the greenhouse effect because trees absorb carbon dioxide, and removing them means less CO₂ is removed from the atmosphere.

Accepted Answer

true

Question 13

A scientist models Earth's atmosphere using a glass jar that traps heat from a lamp. This model is meant to represent which concept?

Accepted Answer

The greenhouse effect, where the atmosphere traps heat like the glass traps warm air

Question 14

The albedo of a surface refers to how much solar energy it absorbs.

Accepted Answer

false

Question 15

Why is Venus much hotter than Earth, even though Mercury is closer to the Sun?

Accepted Answer

Venus has a very thick atmosphere rich in CO₂, creating an extreme greenhouse effect

Question 16

Water vapor is the most abundant greenhouse gas in Earth's atmosphere.

Accepted Answer

true

Question 17

Which of the following best explains why scientists are concerned about rising levels of CO₂ in the atmosphere?

Accepted Answer

Higher CO₂ levels enhance the greenhouse effect, leading to global warming and climate change

Question 18

How does the greenhouse effect compare to the way a real greenhouse (used for growing plants) works?

Accepted Answer

Both trap heat inside, but a real greenhouse uses glass while Earth's greenhouse uses atmospheric gases

Question 19

If Earth had no atmosphere at all, its average surface temperature would be warmer than it is today.

Accepted Answer

false

Question 20

Which of the following statements best summarizes the relationship between the greenhouse effect and Earth's average temperature?

Accepted Answer

The greenhouse effect raises Earth's average temperature by trapping heat that would otherwise escape to space

The Greenhouse Effect and Earth's Energy Balance Quiz

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