The warming of the Earth  is  caused  by  exhaust  gas  from  automobile  engines,  fatories  and  power (1)     . Carbon dioxide goes up into the atmosphere, and it form a kind of screen that keeps or allows the sunshine in but stop the Earth heart (2)     getting out. It works like a greenhouse, that’s  why  we call (3)     the Green House effect. Because of this effect, the Earth is getting warmer all the time. This (4)         in temperature will cause big changes to the world’s climate. The sea level will increase as the ice (5)             the poles will melt.

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