Earth Day & Prepositions

When is Earth Day 2020?

• April 1

• April 22

• May 1

• May 22

Earth Day is a day to think about how to ________ the earth.

• harm

• live on

• protect

• fight

Plants on earth grow in _________.

• food

• water

• soil

• grass

The first Earth Day was in the year ______.

• 1970

• 1980

• 1990

• 2000

The first Earth Day was a nationwide protest.

• True

• False

What year did Earth Day become an international event?

• 1970

• 1980

• 1990

• 2000

Global warming is _______________________ .

• the sudden increase in temperature of the earth.

• the gradual increase in temperature of the earth.

• the sudden decrease in temperature of the earth.

• the slow decrease in temperature of the earth.

Pollution is ___________________________.

• harmful substances that affect the environment.

• helpful chemicals for the environment.

• the number of people in the environment.

• the number of chemicals in an environment.

Deforestation is ____________________________ .

• the growing of more trees on earth.

• the planting of trees in forests.

• the removal of trees by man.

• the removal of trees by natural disaster.

What traps heat in the atmosphere?

• water

• clouds

• greenhouse gases

• hydrogen