
Paragraph Writing (by listing/ description)within 200 words
4.
(a) What is meant by global warming? (b) What is the main cause of global warming? How does it occur? (c) What will happen as a result of long-term global warming? (d) What should be done to solve this problem?
Global Warming
Global warming is one of the most talked about topics of the present world. There are many reasons for global warming around the world and it has disastrous effects on us. Greenhouse effect is the main cause of global warming. The rise in the atmospheric temperature is known as the greenhouse effect. Our atmosphere is guarded by an ozone layer which resists the entrance of ultraviolet rays from the sun. But deforestation around us and the increased amount of carbon dioxide, methane and chlorofluorocarbons affect that layer. The heat of the sun enters directly into the atmosphere of the earth. Scientists are worried about this increased heat because it
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is melting the ice in the polar-regions. If this process continues for a long time, the layer of water in the oceans will rise and flood coastal areas and farm lands of Bangladesh. Besides, this will reduce mankind’s ability to grow food, destroy or severely damage wildlife and wilderness. So, the greenhouse effect is the main cause of global warming along with deforestation and rise of CFC gas. So, in order to solve this problem we have to prevent or reduce the amount of emission of greenhouse gases. We should give it the highest importance to save the world.
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