Ôn luyện TĐN – Ngày 44 – Ngôn ngữ

1. Whenever something is burned, fuel in a car, coal to make electric power, or trees to clear land for farming, pollution goes into the air. Part of pollution is carbon dioxide gas (khí CO2). Many scientists and environmentalists believe that the only way to stop global warming is to cut down on carbon dioxide pollution. To reach such a goal, people throughout the world would have to cooperate (hợp tác) and look for new ways to reduce pollution.

Choose the correct statement.