Question

good speech on global warming and green house effect in english fo asl very imp

Answer 1

Greenhouse effect is the process on the earth planet caused by the gases trapping heat and energy from the various sources. Such gases are called as green house gas like CO2, methane, nitrogen oxide, CFCs, ozone, etc trap heat and warm the earth surface. Such gases hold the heat in the earth atmosphere and cause many changes in the climate and weather. Global warming causes increase in heat waves, floods, droughts, increase in sea level, melting glaciers, endangering many animals and plants species, and negatively affected the way of living of human beings.

Some major green house gases are carbon dioxide, water vapour, methane, and ozone are hugely affecting the environment. The main natural sources of increasing CO2 level are decay of animals and respiration. And other main reason of decreased utilization of CO2 is plants cutting. Plants are the main source of utilizing carbon dioxide and maintaining the level of oxygen. Plants also have ability to reduce the emitted greenhouse gases through natural cycle. Use of refrigerator produces chloro fluro carbons which is a green house gas. Major cause of global warming is carbon dioxide pollution because of increasing industrialization and transportation measures.

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Answer 2

Global Warming is when the earth heats up (the temperature rises). It happens when greenhouse gases trap heat and light from the sun in the earth’s atmosphere, which increases the temperature. This hurts many people, animals, and plants.

It is feared that the world may experience rise in temperature of about 4° to 5°C by 2050. The average temperature of the Earth has risen by about 1°C in last five centuries and of this half of the warming is caused in Twentieth Century alone. The Global Warming is increasing at an alarming rate.

Global warming is affecting many parts of the world. It is doing many things to people as well as animals and plants. It is killing algae, but it is also destroying many huge forests. The pollution that causes global warming is linked to acid rain. Acid rain gradually destroys almost everything it touches. Global warming is also causing many more fires that wipe out whole forests. This happens because global warming can make the Earth very hot. In forests, some plants and trees leaves can be so dry that they catch on fire.

Due to the rise in average temperature of the Earth, agricultural crops, forests and life growth is affected adversely. It also changes balanced equations of marine life. Melting of glaciers will result in the rise of sea level posing a threat upon the habitat of coastal areas.

Because of these dangerous effects of ‘Global Warming’, at the international level measures are taken in the form of conferences, agreements and research.