EVERYDAY SCIENCE

Detailed explanation-1: -NASA has observed increases in the amount of carbon dioxide and some other greenhouse gases in our atmosphere. Too much of these greenhouse gases can cause Earth’s atmosphere to trap more and more heat. This causes Earth to warm up.

Detailed explanation-2: -All of these human activities add greenhouse gases to the atmosphere. As the level of these gases rises, so does the temperature of Earth. The rise in Earth’s average temperature contributed to by human activity is known as global warming.

Detailed explanation-3: -The greenhouse effect helps trap heat from the sun, which keeps the temperature on earth comfortable. But people’s activities are increasing the amount of heat-trapping greenhouse gases in the atmosphere, causing the earth to warm up.

Detailed explanation-4: -Greenhouse Gases Carbon dioxide, methane, and nitrous oxide concentrations are now more abundant in the earth’s atmosphere than any time in the last 800, 000 years. These greenhouse gas emissions have increased the greenhouse effect and caused the earth’s surface temperature to rise.

Detailed explanation-5: -The increase in temperature is caused because sun radiation enters the greenhouse, but only a small part of that radiation can leave after it has been reflected and absorbed. This is similar to the process that occurs on Earth causing the atmosphere to warm-up and enabling the existence of life on our planet.