Question

II. Fill in the blanks:-(2x10=20)
1.Process of separation of different constituents from petroleum is called
2._animals give birth to young ones.
3. Friction depends on the of surfaces.
4. The unit of frequency is
5. Smog is made of smoke and
6. Kerosene,petrol and diesel are fuels.
7. ___ was the first mammal to be cloned.
8. Friction produces
9. Shrillness of a sound is determined by the of vibration
10. damages the ozone layer of the atmosphere.​

Answer 1

Answer :

1) Petrol Refining

2) Mammals

3) Gravity

4) Hertz (or) Hz

5) Fog

6) Exhaustible Fuels

7) Bat

8) Heat

9) Amplitude

10) UV Rays (Ultraviolet Rays)

Answer 2

Bro see the best option would be that just open Google and search all of these as typing all would take a lot of time

steps....

✓ Copy the question.

✓ Lock the Question paper window.

✓ Open Google.

✓ Paste the question.

✓ don't copy the same but modify it a bit.

hope this helps.

#IDontSupportCheating

Hope this helps you if yes than follow me ✌️ and Mark as the brainliest answer