Option 1: Both the statements are individually true and Statement II is the correct explanation of Statement I.

This option suggests that both Statement I and Statement II are true, and that Statement II provides a correct explanation for Statement I. It implies that all the energy received by the earth is indeed from the Sun through electromagnetic radiation, and the earth does radiate back all the received energy through various ways to maintain the heat budget of the planet. Therefore, this option is a valid choice.

Option 2: Both the statements are individually true but Statement II is NOT the correct explanation of Statement I.

This option suggests that both Statement I and Statement II are true, but Statement II does not provide a correct explanation for Statement I. It implies that while it is true that all the energy received by the earth is from the Sun through electromagnetic radiation, Statement II does not accurately describe how the earth radiates back the received energy. Therefore, this option is the correct answer provided for this question.

Option 3: Statement I is true but Statement II is false.

This option suggests that Statement I is true, meaning that all the energy received by the earth is from the Sun through electromagnetic radiation. However, it states that Statement II is false, implying that the earth does not radiate back