Consider the following statements. Which of the statements given above is/are correct? Choose the correct answer from the options given below:

1.The radiation reflected back to the atmosphere is called albedo

2.The atmosphere is essential in maintaining the heat balance

3.Heat and sunlight both pass through the atmosphere

AOnly (1)

B(2) and (3)

C(1) and (2)

D(1) (2) and (3) ✓ Correct

Correct answer: (D) (1) (2) and (3)

Explanation

All three statements are correct: radiation reflected back is called albedo, the atmosphere is essential for the heat balance, and both heat and sunlight pass through it.

Statement 1 is right because albedo is the fraction of incoming radiation reflected by a surface.

Statement 2 is right since the atmosphere traps and redistributes heat to keep the planet's temperature stable.

Statement 3 is right because incoming sunlight and outgoing heat both move through the atmosphere.

A bright surface like fresh snow has high albedo, while dark oceans and forests have low albedo.

Changes in albedo, such as melting ice exposing dark water, can amplify warming.

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