Question

1. Abnormally logn period of insufficient or no rainfall is called flood.
2. Plants take in oxygen during photosynthesis.
3. Moving air is called storm.
4. An object that gives out light of its own is called a non-lumionous object.
5. A beam is a line with an arrow that shows the direction of propagation of light.

Answer 1

1. Abnormally long period of insufficient or no rainfall is called flood - False
An abnormally long period of insufficient or no rainfall is called drought.

2. Plants take in oxygen during photosynthesis - False
Plants take in carbon dioxide during photosynthesis.

3. Moving air is called a storm - True

4. An object that gives out light of its own is called a nonluminous object - False
An object that gives out light of its own is called a luminous object.

5. A beam is a line with an arrow that shows the direction of propagation of light - False
A ray is a line with an arrow that shows the direction of propagation of light.