Question

Equinox occurs when
1.21-22 June
2. 21-22 December
3. 22-23 April
4. 21-22 March and 22-23 September
Which among the following gases is most prevalent in the atmosphere
1. Argon
2. Carbon dioxide
3. Hydrogen
4. Oxygen
Which of the following activities contributes more to global warming
1. Burning of fossil fu
2. Mining of coal
3. Deforestation
4. Carbon emission from vehicles and factories
The Earth moves on a constant orbit plane known as
1. Ecliptic plane
2. Solar plane
3. Aphelion
4. Perihelion plane