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Q: The principle element of sun is______.
  • A. Oxygen
  • B. Carbon
  • C. Hydrogen
  • D. Silicon
Correct Answer: Option C - The principle element of sun is hydrogen. The sun is in the centre of the solar system. It is huge and made up of extremely hot gases. Its main constituents are Hydrogen (70%), Helium (28%) and others (2%). The centre of the Sun is called Core and its temprature is about 1.5 × 10⁷ °C and the temperature of outer surface of the Sun is about 6000°C.We know that the Sun is the ultimate source of heat and light for the solar system.
C. The principle element of sun is hydrogen. The sun is in the centre of the solar system. It is huge and made up of extremely hot gases. Its main constituents are Hydrogen (70%), Helium (28%) and others (2%). The centre of the Sun is called Core and its temprature is about 1.5 × 10⁷ °C and the temperature of outer surface of the Sun is about 6000°C.We know that the Sun is the ultimate source of heat and light for the solar system.

Explanations:

The principle element of sun is hydrogen. The sun is in the centre of the solar system. It is huge and made up of extremely hot gases. Its main constituents are Hydrogen (70%), Helium (28%) and others (2%). The centre of the Sun is called Core and its temprature is about 1.5 × 10⁷ °C and the temperature of outer surface of the Sun is about 6000°C.We know that the Sun is the ultimate source of heat and light for the solar system.