Question

Write T for the true statement and F for the false one. correct the false statement(s).
1. The presence of chemicals in the air in quantities harmful to human health is known as water pollution.
2. A relatively small body that revolves around a bigger body like a planet is called a celestial body.
3. Mars is the smallest planet in our solar system.
4. Reflection from a rough surface is called regular reflection.
5. Material in which charged particles can move freely is called an insulator.

Answer 1

1.F The presence of chemicals in the air in quantities harmful to human health is known as air pollution.

2.F A relatively small body that revolves around a bigger body like a planet is called a satellite.

3.F Mercury is the smallest planet in our solar system.

4.F Reflection from a rough surface is called diffused reflection.

5.F Material in which charged particles can move freely is called a conductor.