Q. The term 'meteor' is applied to an interplanetary body: (Solved)
1. after it enters the atmosphere of the earth
2. after it enters the earth's atmosphere and explodes in mid air as a ball of fire
3. after it enters the earth's atmosphere and lands on the surface of the earth without exploding in mid-air
4. before it enters the earth's atmosphere
- b. after it enters the earth's atmosphere and explodes in mid air as a ball of fire