Choose the sentence that best combines each pair of sentences given.

There are some ways to help reduce global warming. Cutting down energy use is one of them.

The environment has been made catastrophic by global warming.

It is true that global warming is a catastrophe caused by the environment.

It has been proven that global warming is harmful to the environment.

The environment has been truly dangerous because of global warming.

It is alarming that deforestation damages the quality of the land.

The quality of the land deteriorates as the result of the alarming rate of deforestation.

The alarming rate of deforestation results from damage to the quality of the land.

The damage to the quality of the land is to blame for the alarming rate of deforestation.

Numerous catastrophic consequences result in climate change.

Numerous catastrophic consequences result from climate change.

Climate change results from numerous catastrophic consequences.

Numerous catastrophic consequences cause climate change.

Heat-related illnesses result from the increase in earth’s temperature.

Heat-related illnesses result in the increase in earth’s temperature.

Heat-related illnesses lead to the increase in earth’s temperature.

Heat-related illnesses trigger the increase in earth’s temperature.

Some animals go extinct due to changes in climate where they live.

Climate changes make some animals go extinct where they live.

The climate changes where some animals there go extinct.

That some animals go extinct causes the climate where they live to change.

Plants and animals that died millions of years ago become fossil fuels.

Fossil fuels come from plants and animals that died millions of years ago.

Fossil fuels were made from plants and animals that died millions of years ago.

Plants and animals died millions of years ago to become fossil fuels today.

Having denied his company’s damage, he took responsibility for it.

He denied having damaged to his company’s area.

He denied having taken responsibility for the damage to his company’s area.

He denied having said that he would take responsibility for his company’s damage to the area.