Fill in the verbs in the appropriate form.
1nbsp; nbsp;

Fill in the verbs in the appropriate form.
1nbsp; nbsp; Water sustains life.
2nbsp; nbsp; Theres evidence that several civilisations of the past collapsed because of natural disasters.
3nbsp; nbsp; According to Charles Darwins theory, apes evolved into people.
4nbsp; nbsp; For some chemical experiments its very important to maintain constant temperature.
5nbsp; nbsp; Some scientists say that in a hundred years time the surface of the Earth may alter beyond recognition.
6nbsp; nbsp; The economic growth of many countries is accelerating rapidly.