Complete the first conditional sentences with the correct form of the verbs in brackets. 1.if the earth gets hotter,

1. If the Earth gets hotter, more countries will suffer droughts. 2. Southern Europe will become a desert if global warming continues. 3. If we don't do anything soon, this problem will get worse. 4. People will die if they can't grow food. 5. If the ice melts, polar bears will not survive.