Question

write a essay on the topic “Global Warming” in about 250-300 words...​

Answer 1

Answer:

The earth is burning. And we are the reason behind it. An unprecedented rise in the global atmospheric temperature on earth can be termed global warming. The average temperature on earth has increased by 1.5 degrees Celsius since the last decade. Global warming is not a single phenomenon; rather, a series of interlinked events that fuel the ultimate rise in global temperatures. It has a plethora of effects across different levels of the ecosystem. In some parts of the world, the effect is negligible, while in others, the effect is significant. The Burning of fossil fuel and respiration by animals releases gases like carbon dioxide that escapes into the atmosphere.

The heat rays reflecting from the surface of the earth get trapped in the atmosphere because of the carbon dioxide present in it. This is known as the ‘greenhouse effect.’ It is necessary to prevent our planet from becoming a frozen ball. But excessive carbon dioxide retains all the heat emanating from the earth’s surface, leading to global warming. The main gases responsible for global warming are known as greenhouse gases.

The chief greenhouse gases are carbon dioxide, methane, nitrous oxide, and ozone. These gases, when present in unbalanced amounts, result in global warming. Global warming can wipe out the entire human population from the surface of the earth and therefore, must be curbed at the earliest. While the damage cannot be reversed, we can ensure that the effects are controlled to some extent. The first thing we need to do is lead a mass afforestation drive. Next, we can shift from conventional sources of energy like petroleum to cleaner ones like solar and wind energy.

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Explanation:

Answer 2

Explanation:

Global warming refers to climate change that causes an increase in the average of Earth’s temperature. Natural events and human influences are believed to be top contributions towards the increase in average temperatures. Global warming is a rise in the surface and atmospheric temperature of the earth that has changed various life forms on the earth. The issues that ascertain global warming are divided into two broad categories – “natural” and “human influences” of global warming.

The climate has been continuously changing for centuries. One natural cause of global warming is greenhouse gases. Greenhouse gases are carbon monoxide and sulphur dioxide. It traps the solar rays and prevents them from escaping the surface of the earth.

This causes an increase in the temperature of the earth. Volcanic eruptions are another reason for global warming. A single volcanic eruption can release a great amount of carbon dioxide and ash to the atmosphere. Increased carbon dioxide leads to a rise in the temperature of the earth.

Also, methane gas is another contributor to global warming. Methane is also a greenhouse gas. Methane is twenty times more effective in trapping heat in the atmosphere than carbon dioxide. Usually, methane gas is released from many areas like animal waste, landfill, natural gas, and others.