Question

1. natural gas is a fuel that is commonly used for and

a) cooking, heating
b) cooking, lighting
c) lighting, heating

1. natural gas is a fossil fuel

a) true
b) false

1. natural gas is a.

a) gas
b) liquid
c) solid

Explanation:

• Question 9: Natural gas is widely used in households for cooking (e.g., gas stoves) and heating (e.g., gas - powered boilers for central heating). Lighting is more commonly associated with electricity (e.g., incandescent bulbs, LEDs) rather than natural gas.
• Question 10: Natural gas is formed from the remains of ancient plants and animals that were subjected to high pressure and temperature over millions of years, which is the definition of a fossil fuel.
• Question 11: The name “natural gas” itself implies its state. It exists as a gas under normal temperature and pressure conditions. Liquids (e.g., water, oil) and solids (e.g., coal, ice) have different physical properties.

Answer:

1. a) Cooking, heating
2. a) True
3. a) Gas