English 11 - Unit 5 - Lesson 1

Global warming is the _____ in the earth's temperature caused by greenhouse gases.

• pollution

• balance

• increase

• heat

How do greenhouse gases _____ heat in the earth's atmosphere?

• cut

• melt

• burn

• trap

The greenhouse _____ is the gradual warming of the earth's surface.

• effect

• gas

• pollution

• consequence

It is important to understand the causes and effects of global (a)   to protect our planet.

Increase in temperatures can add more water to oceans, which can lead to a rise in sea (a)  

Carbon dioxide and other greenhouse gases are mainly produced by human (a)   .

These factories are releasing toxic gases into the _____.

• carbon dioxide

• temperature

• pollutants

• atmosphere

_____ have risen over the past few days so the weather has become warmer.

• Environment

• Temperatures

• Fossil fuels

• Impact

Scientists think it is unlikely that any species will actually become extinct as a (a)   of the oil spill.

There has been a sudden and worrying rise in the level of carbon (a)   in the atmosphere.