Question

The main source of heat is

• A. Electricity
• B. The stars
• C. The sun
• D. None of the options

Answer 1

The correct option is C

The sun

Explanation for correct option:

1. Sun is the star located at the center of the solar system. It is a nearly perfect sphere-shaped hot plasma.
2. It is the major source of heat on earth as it transfers heat energy through radiation of electromagnetic waves.
3. It is the star closest to earth, so it provides a large amount of heat.

Explanation for incorrect option(s):

Option A:

1. Electricity produces heat in various ways, but the amount of heat generated through it is very less.
2. Rather heat is a side product when we use electricity it can no way compete with the amount of heat produced by the sun.

Option B:

1. The stars also produce electromagnetic waves as the sun, in fact, more than the sun but they are way too far to generate that amount of heat.
2. Thus, the heat generated by stars can be neglected.

Hence, the correct answer is option C.