Only when the factories use electricity, they put greenhouse gases into the air.
举一反三
- Whenever we use electricity, we put greenhouse gases into the air.
- When we use electricity, wu put greenhouse gases______ the air. A: away B: off C: on D: into
- One of the ways to reduce the amount of greenhouse gases that we put into the air is to buy products that don't use as much energy.
- Why should we reduce the amount of greenhouse gases that we put into the air?
- Answer the following questions according to the passage.Why should we reduce the amount of greenhouse gases that we put into the air?Because the greenhouse gases and make the earth warmer.