Question

Sewage is mainly a

• A. liquid waste
• B. solid waste
• C. gaseous waste
• D. the mixture of solid and gas

Answer 1

The correct option is A

liquid waste

The correct option is A.

Explanation for the correct option:

1. The sewage is referred to as wastewater generated.
2. Sewage includes wastewater from households, industries, agricultural runoff, etc.
3. This sewage mainly contains wastewater, hence it is liquid waste.

Explanation for the incorrect options:

Option B:

1. Solid waste is referred to as material which discarded forming waste.
2. Solid waste includes organic household waste, plastic waste, electronic waste, food waste, etc.
3. In general, solid waste can be solid, semi-solid, or hard solid in a physical state.

Option C:

1. Gaseous waste is referred to as waste that creates pollution in the air.
2. Burning of fuels, coal, solid waste, and direct release of chemicals into the air and makes the air polluted.
3. This polluted air contains an increasing amount of hazardous gases.
4. And this is called gaseous waste.

Option D:

1. Some solid and liquid waste together releases polluted gas in the air causing air pollution.
2. This leads to the generation of solid and gaseous waste both.

Final answer: Sewage is mainly a liquid waste.