Question

Correct the definitions of certain terms given below by changing only one word.

(i) Compost: Substances converted into manure for use in industries.

(ii) Landfill: Garbage buried underwater in an area.

(iii) Recycling: Reuse unused material in the same or another form.

Answer 1

Compost:

1. Compost is a process where substances are converted into manure for use in agricultural fields.
2. It is the biological degradation process of heterogeneous solid organic materials that are degraded under controlled moist, self-heating, and aerobic conditions.
3. A stable material is obtained that can be used as an organic fertilizer.

Landfill:

1. It is a process where garbage is buried under the soil in an area.
2. The waste that cannot be reused or recycled is separated.
3. Then it is spread as a thin layer in low-lying areas across a city.
4. After each layer of garbage, a layer of soil is added.
5. However, once this process is complete, the area is declared unfit for the construction of buildings for the next 20 years.

Recycling:

1. It is a process where used materials are reused in the same or another form.
2. It is a cost-efficient system of conserving the environment and saving energy.
3. Recycling waste products is more essential as it helps in treating waste and used products and converting them into useful or new products.
4. It also helps to monitor air, land, and water pollution.