Question

Q... Rame we w
1. Two methods by which a magnet can be demagnetised.
2. Examples of random motion
3. Plants found on mountains
B. Define (any 4]
1. Conservation of water
2. Stimuli
3. Demagnetized
4. Non-luminous
5. Vermicomposting
Q.3.A. Answer in one sentence (any 5]
[5 ]
1. Mention the two main function of water for living organisms?
2. What is the composition of air?
3. Give two examples of periodic motion?
4. What is reflection of light?
5. Write any two properties of magnet?
B. Distinguish between
[4m)
1. Magnetic and non magnetic materials
2. Umbra and penumbra
2.4. Answer in brief (any 4]
[6m)​

Answer 1

Explanation:

examples for periodic motion are pendulum and revolution of earth around the sun