Review Unit 2

Some scientists have distorted the effects of climate change. They were accused of that.

1. Some scientists were accused of having falsify the effects of climate change.
2. Some scientists were accused of having been honest about the effects of climate change.
3. Although some scientists have distorted the effects of climate change, they were not accused.
4. Some scientists were accused of having falsified the effects of climate change.

We have advised you on how to cut down your energy use. We remember that.

1. We can no longer remember having advised you on how to decrease your energy use.
2. We remember having advised you on how to maintain your energy use.
3. We remember having advised you on how to decrease your energy use.
4. We remember to have advised you on how to decrease your energy use.

They decided to cut down their carbon footprints. They were praised for that.

1. They were praised for having decided to decrease their carbon footprints.
2. They were not punished for having decided to decrease their carbon footprints.
3. Unless they decided to cut down their carbon footprints, they were praised for that.
4. If they decided to cut down their carbon footprints, they would be praised for that.

He donated a lot of money to environmental protection campaigns. He was admired for that.

1. Unless he donated a lot of money to environmental protection campaigns, he was admired.
2. He was admired for having donated a lot of money to environmental protection campaigns.
3. If he had donated a lot of money to environmental protection campaigns, he would have been admired.
4. If he donates a lot of money to environmental protection campaigns, he will be admired.

He said that he would take responsibility for his company's damage to the area. But then he denied that.

1. Having denied his company's damage, he took responsibility for it.
2. He denied having damaged to his company's area.
3. He denied having taken responsibility for the damage to his company's area.
4. He denied having said that he would take responsibility for his company's damage to the area.

Planting trees can contribute to reducing global warming.

1. Global warming can't be controlled by planting trees.
2. Planting trees is the only way to control global warming.
3. Planting trees can accelerate global warming.
4. Planting trees can help reduce global warming.

Carbon dioxide is one of the primary greenhouse gases that cause global warming.

1. Carbon dioxide is the only greenhouse gas that causes global warming.
2. Global warming results in greenhouse gases, including carbon dioxide.
3. One of the main greenhouse gases that lead to global warming is carbon dioxide.
4. Global warming causes greenhouse gases, including carbon dioxide.

The increase in earth's temperature can cause heat-related illnesses.

1. Heat-related illnesses result from the increase in earth's temperature.
2. Heat-related illnesses result in the increase in earth's temperature.
3. Heat-related illnesses lead to the increase in earth's temperature.
4. Heat-related illnesses trigger the increase in earth's temperature.

Climate change leads to numerous catastrophic consequences.

1. Numerous catastrophic consequences result in climate change.
2. Numerous catastrophic consequences result from climate change.
3. Climate change results from numerous catastrophic consequences.
4. Numerous catastrophic consequences cause climate change.

Having seen people suffer global warming consequences, we decided to reduce carbon footprints.

1. We decided to reduce carbon footprints before seeing people suffer global warming consequences.
2. We saw people suffer global warming consequences after we decided to reduce carbon footprints.
3. We decided to cut down on carbon footprints after we saw people suffer global warming consequences.
4. We decided to cut down on carbon footprints before we saw people suffer global warming consequences.