1) If we have enough water,  a) we won't be thirsty b) we will be thirsty c) we will thirsty d) we would be thirsty 2) More species will survive a) if we won't protect nature b) if we protects nature c) if we will protect nature d) if we protect nature 3) We will reduce the use of natural resources a) if we recycled old things b) if we would recycle old things c) if we recycle old things d) if we will recycle old things 4) If we destroy the ozone layer, a) nothing will save us from UV rays b) everything will be saved c) nothing will be saved us from UV rays d) nothing save us from UV rays 5) If we don't stop cutting down so many trees, a) we endangers our oxygen supply b) we are endangered our oxygen supply c) we would endanger our oxygen supply d) we will endanger our oxygen supply 6) If we pollute the air, a) the earth won't get hotter b) the earth will get hotter. c) the earth would pollute the air d) the earth polluted 7) If the earth gets hotter, a) the ice caps melts b) the ice won't melt. c) the ice will be melting. d) the ice caps will melt.

First Conditional

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