Atmosphere

What is the effect of CFCs in the environment?

• increase in methane

• increase in ozone

• increase in acid precipitation

• increase in skin cancer due to UV radiation

The seasons change because

• the earth is closer vs. farther from the sun

• more direct sunlight hits the earth when it is tilted toward the sun

• the earth changes speed

• the earth is influenced more by the moon

What is the benefit of the ozone layer?

• it reduces the amount of UV radiation hitting the earth

• it increases the amount of nitrogen in the atmosphere

• it maintains the magnetic field of the earth

• it prevents severe storms

In which layer do thunderstorms occur?

• troposphere

• thermosphere

• mesosphere

• stratosphere

Which gas makes up the majority of the atmosphere

• oxygen

• argon

• nitrogen

• carbon dioxide

Which is a major source of air pollution created by humans?

• hydroelectric plants

• industrial factories

• reforestation

• nuclear power

Which of the following can cause ozone layer depletion?

• coal-powered plants

• CFCs

• vehicle exhaust

• burning compost

What happens when burning fossil fuels DECREASES

• carbon dioxide decreases

• nitrogen increases

• oxygen decreases

• sulfur dioxide increases

What causes acid rain?

• global warming

• burning fossil fuels

• using aerosols

• using fertilizers

As altitude increase, temperature _____ in the troposphere and _____ in the stratosphere.

• decreases, decreases

• increases, increases

• decreases, increases

• increases, decreases