Question

1. Name the technique which is commonly used to remove bulk wastes.
2. Why was the use of ‘kulhads’ (disposable cups made of clay) at a mass scale in the railways discouraged?
3. Name any two solid wastes which can be recycled.

Answer 1

Explanation :

1. The techniques that are commonly used to remove bulk wastes are incineration and sanitary landfills. Incineration is the process in which mass wastes are destroyed through burning. Sanitary landfills are modern engineering landfills that allow garbage to degrade into biologically and chemically inert compounds in an enclosed environment.

2.

1. The use of kulhads (disposable cups of clay) was discouraged at the railway stations because the making of kulhad resulted in the loss of the fertile top layer of the soil.
2. The fertile layer of the soil is rich in nutrients and is essential for agricultural purposes.
3. Loss of the top layer of soil could result in poor agriculture.

3. Two solid wastes that can be recycled are paper, glass, and metal.