Read the following text and answer the questions no. A: Humans can neither change the sun's radiation nor the earth's orbit around the sun. But they can control the increase in the amount of greenhouse gases and its effect on the atmosphere. Only during the last hundred years the carbon dioxide concentration has been raised alarmingly in the atmosphere and we humans can be held responsible for this. The main cause of the increase in carbon dioxide level in the atmosphere is the burning of fossil fuels. Since the [গণিত] the 19th century, industrial activities increased rapidly giving rise [গণিত] many factories. These factories required energy which was produced through the combustion of coal. Besides coal, other sources of energy such as mineral oil and natural gas were also burned [গণিত] heat our houses, run cars and airplanes or [গণিত] produce electricity. Nowadays, about 85 million barrels of crude oil are burned daily. Every time a fossil raw material is burned, it releases carbon dioxide into the air. Therefore, it is clear that more and more greenhouse gases like carbon dioxide are being generated worldwide by humans. Moreover, we are also strengthening the greenhouse effect by deforestation, which means cutting down trees. Every year enormous areas of forests are destroyed by people [গণিত] obtain wood and [গণিত] clear regions for mining and [গণিত] create pasture. This loss of the forest causes dual problems. Trees that are burned up release large volumes of carbon dioxide gas into the air. On the other hand, as forests absorb a lot of carbon dioxide from the air and deliver oxygen instead, we also destroy an important storehouse of carbon dioxide when we clear forests. B. Match the parts of sentences in column A, B and C [গণিত] write five complete sentences. [চিত্র]

উত্তর: (a) People are cutting down tress for various purposes. (b) One of those is to collect wood for habitation and furniture. (c) Trees also are being used as fuel in cooking. (d) We know, trees consume huge carbon dioxide from air. (e) Human beings are mainly responsible to increase greenhouse gases to pollute the air (f) Burning coal in factories is one of the reasons to release carbon dioxide in the air. (g) So, we should be aware and take initiative to protect our earth for future generation.

SSC ইংরেজি ১ম পত্র CQ — Prosthuti প্রশ্নব্যাংক