Question

5. Mention four ways in which the atmosphere helps us.
ition
SCHOOL​

Answer 1

Step-by-step explanation:

The atmosphere protects Earth from harmful solar radiations and regulates heating provided by the Sun. The first function is made possible by ozone existing in the stratosphere, the second function is achieved by a mix of gases existing in the whole atmosphere called “greenhouse gases”. Ozone accumulating in the stratosphere (called “stratospheric ozone“) is crucial for the survival of life on Earth as it constitutes a sort of natural screen for a part of solar radiations that are invisible to humans and are located in the ultraviolet region (frequency from 100 to 400 nm). If these radiations reached the soil they would cause genetic mutations, skin tumours and many other damages to flora and fauna. Moreover, stratospheric ozone plays a fundamental role for the formation of clouds and rain as it heats up and blocks water vapour in the lower layers of the atmosphere. Greenhouse gases, instead, are responsible for the heating of the lower atmosphere and Earth’s surface