Natur end the Environment (т. а. )

Combine words into pairs to make expressions.

1.                      [demographic damage, demographic politics, ecological politics] show that by 2050the word's population will be 3,5 billion.

2) Scientists define                    [ecological balance, climatic balance, climatic changes] as the harmonious coexistence beetween organisms and their Environment.

3)                    [climatic changes, ecological changes, natural changes] are caused by global warming and the greenhouse effect.

4)                [tidal energy, natural energy, green energy] is a renewable energy source that converts the energy of tides into electricity.

5) Taking two bottles to the             [bank, nature bank, bottle bank] for recycling saves enough energy to boil water for five cups of tea.

6) Since people need more and more land for farming,                   [tropical forest, temperate forests, Boreal forests] are being cleared at an alarming rate.

Label your suitcase to         [avoid, prevent, protect]

We left early to         [avoid, prevent, protect] the traffic.

It's important to         [prevent, avoid, protect] your skin from the harmful effects of the sun.