Question

paraghraph on global warming form 200 to 250

Answer 1

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Global Warming is majorly the result of the increased Greenhouse effect. Because of this phenomenon, the water level of both sea and ocean has increased. Such a high increase in the level of water is unwanted and risky too as it can even result in a natural calamity like a flood.

Global Warming is the extreme rise or increase in the temperature of the surface of the Earth.

Global Warming is the extreme rise or increase in the temperature of the surface of the Earth.Earth’s surface includes both land and water which means that the temperature of not only land increases but that of water as well. Such heat creates many problems for all the living beings like plants, animals and human beings on Earth.

Answer 2

Answer:

• Global warming is the temperature of Earth's surface, oceans and atmosphere going up over tens of years.Average temperatures today are about 1 °C (1.8 °F) higher than before the Industrial Revolution, which started around 1750.But in some parts of the world it is less than this and some more. Almost all scientists say that by the year 2100 temperatures will be 1.5 °C (2.7 °F) to 5 °C (9.0 °F) higher than they were before 1750.The most noticeable changes because of this increase in temperature is the melting of ice caps all around the world. Sea level is rising steadily because of continental ice melting into the sea. Many cities will be partly flooded by the ocean in the 21st century.

• Among the greenhouse gases, the increase of carbon dioxide in the atmosphere is the main cause of global warming, as predicted by Svante Arrhenius a hundred years ago, confirming the work of Joseph Fourier more than 200 years ago. When people burn fossil fuels like coal, oil and natural gas this adds carbon dioxide into the air. This is because fossil fuels contain lots of carbon and burning means joining most of the atoms in the fuel with oxygen. When people cut down many trees (deforestation), this means less carbon dioxide is taken out of the atmosphere by those plants.