u5 g11

__________ like carbon dioxide and methane are major contributors to global warming.

• Sea levels

• Acid rain

• Human activities

• Heat-trapping pollutants

When fossil fuels are burned, they ________ carbon dioxide and methane into the atmosphere.

• waste

• achieve

• release

• balance

Rising sea levels ________from the melting of polar ice caps due to global warming.

• prevent

• result

• suffer

• protect

__________ more greenhouse gases, human activities are speeding up global warming.

• Produce

• Producing

• Produced

• Produces

__________ by the effects of global warming, scientists are urging immediate action.

• Worried

• Worrying

• Worries

• Worry

________ too many greenhouse gases into the atmosphere, human activities are accelerating global warming.

• Released

• Releasing

• Releases

• Release

________ for their wood, rainforests are shrinking rapidly, leading to loss of biodiversity.

• Cut

• Cutting

• Cuts

• To cutting

Many scientists emphasize the need to reduce ________ emissions as they are a major source of black carbon, a potent contributor to climate change.

• crop

• soil

• coal

• soot

People are beginning to see how to ________ global progress on climate change by making small changes in their daily habits.

• take

• make

• get

• do

If we continue to pollute the air, the ________ will be harmful to both people and wildlife.  

• amounts

• causes

• consequences

• solutions