Question

Do you think that use of “Kullad” (Clay cup) in railways for providing tea and coffee is a way of sustainable use of resources? How?

Answer 1

Hint: Kullads are the cups that are made up of clay and it is renewable in nature. The usage of these kullads helps in the minimization of the use of the plastic cups. These cups are biodegradable in nature, that is it can be decomposed by the microorganisms.

Complete answer:
The use of plastic cups for drinking tea, coffee etc. leads to the discharge of many plastic cups in the environment. These cups are either thrown as such or they are made to undergo the process of incineration. Incineration is the process in which the waste or other substance is burnt to avoid the accumulation of a large volume of wastes. And this process may lead to the air pollution since the gases obtained from the burning are carbon dioxide, Sulphur etc.

This affects the earth by causing global warming. If these wastes are thrown as such, they block the plant roots. This global warming also leads to many effects like climatic changes, rise in sea level, acid rain etc. The kullads reduce these effects on the environment. They can be reused several times and it is also biodegradable in nature. This reusing reduces the cost of production and it also saves the valuable natural resources.

Hence the use of kullads in railways for providing tea and coffee is the sustainable way of using natural resources.

Note: These kullads are made from the clay by shaping it into the shape of the cups. Then it is fired in order to make these vessels strong and durable at high temperatures. The high temperature is applied to sterile all the microorganisms present in the clay.