Geography
Assertion (A): Earth's atmosphere is acting like a blanket.
Reason (R): Earth's atmosphere contains different gases.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true and R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
Answer
Both A and R are true and R is not the correct explanation of A.
Explanation — The assertion is true because Earth's atmosphere acts like a blanket by trapping heat and maintaining the planet’s temperature, making it suitable for life. The reason is also true, as the atmosphere is made up of different gases. However, the presence of gases alone does not explain how the atmosphere acts like a blanket—it is the greenhouse effect caused by certain gases like carbon dioxide and water vapour that provides this warming effect. So, while both statements are correct, the reason does not directly explain the assertion.
Related Questions
Draw a neat diagram to show the realms of the Earth.
Draw a neat diagram to show the water cycle on the earth.
People in ancient times had a fear to venture far into the sea. They thought that after reaching the steep edge of the table, they would slip down into the ocean. Is it a true fact? Justify your statement.
Assertion (A): Earth is a not a perfect sphere.
Reason (R): Earth is bulged in the equator and flattened at the poles.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true and R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.