Read activity 4b and add three more examples. e.g. Turn off lights in any room if there is nobody there.

1)you need to use textile bags instead of plastic bags, because plastic decomposes for a very long time and thereby pollutes the planet.

2)need to use water more economically. When we brush our teeth, turn off the water so that it does not flow in vain.

3)It is necessary to replace petrol and gas with hydrogen engines and electric vehicles.

Объяснение: