What is the correct sequence in the increasing order of heat energy received per unit area from the Sun measured on Earth, Mars and Jupiter?

Options

A. Jupiter `gt` Mars `gt` Earth
B. Earth `gt` Mars `gt` Jupiter
C. Jupiter `gt` Earth `gt` Mars
D. Earth `gt` Jupiter `gt` Mars

Answer

To determine the correct sequence in the increasing order of heat energy received per unit area from the Sun measured on Earth, Mars, and Jupiter, we can follow these steps:

### Step 1: Understand the relationship between distance and heat energy
The amount of heat energy received from the Sun decreases as the distance from the Sun increases. This is because the intensity of sunlight diminishes with distance.

### Step 2: Identify the distances of the planets from the Sun
- **Earth** is the third planet from the Sun.
- **Mars** is the fourth planet from the Sun.
- **Jupiter** is the fifth planet from the Sun.

### Step 3: Compare the distances
Since Earth is closer to the Sun than Mars, and Mars is closer than Jupiter, we can establish the following order based on distance:
- Jupiter (farthest from the Sun)
- Mars (middle distance)
- Earth (closest to the Sun)

### Step 4: Determine the heat energy received
Based on the distances:
- Jupiter receives the least heat energy per unit area because it is the farthest from the Sun.
- Mars receives more heat energy than Jupiter but less than Earth.
- Earth receives the most heat energy per unit area because it is the closest to the Sun.

### Step 5: Write the final sequence
Thus, the correct sequence in increasing order of heat energy received per unit area from the Sun is:
1. Jupiter (least)
2. Mars
3. Earth (most)

### Final Answer:
The correct sequence is: **Jupiter, Mars, Earth.**

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