I. Mark the letter A, B, C, or D to indicate the correct answer to each of the following sentences. ⇱
Question 1. Renewable energy is clean, so it doesn’t ________ the environment.
Question 2. Farming provides us ________ the food that we eat every day.
Question 3. Black carbon emissions come from several sources and ________ the earth’s temperature.
Question 4. The world’s biggest source of soot is ________ crop waste.
Question 5. Household air ________ kills millions of people yearly.
II. Rewrite the sentences using present or past participle clauses. ⇱
Question 6.
Renewable energy is available, so it is suitable for the future. → .
Question 7.
They cut down forests for farms, and now they are suffering from the consequences. → .
Question 8.
They are educated about the impact of global warming, so they decided to save more energy. → .
Question 9.
The children are supported by their parents, so they are confident to participate in the speaking contest about the environment. → .
Question 10.
If methane is produced in huge amounts, it poisons the air. → .