Ultra violet radiations of the Sun do not reach the earth because, earth’s atmosphere is surrounded by A. Carbon dioxide B. Ammonia C. Chlorine D. Ozone

[amp_mcq option1=”Carbon dioxide” option2=”Ammonia” option3=”Chlorine” option4=”Ozone” correct=”option4″]

The correct answer is D. Ozone.

Ozone is a gas that is found in the Earth’s atmosphere. It is made up of three oxygen atoms, and it is very good at absorbing ultraviolet radiation from the sun. This is important because ultraviolet radiation can damage DNA and cause skin cancer. Ozone helps to protect us from this damage by absorbing the ultraviolet radiation before it reaches the surface of the Earth.

Carbon dioxide, ammonia, and chlorine are all gases that are also found in the Earth’s atmosphere, but they do not absorb ultraviolet radiation as well as ozone does. This is why ultraviolet radiation can reach the Earth’s surface when these gases are present in the atmosphere.

Ozone is a very important part of the Earth’s atmosphere, and it helps to protect us from the harmful effects of ultraviolet radiation. However, ozone is also a very fragile gas, and it can be easily destroyed by human activities. This is why it is important to protect the ozone layer, and to reduce our emissions of ozone-depleting substances.