Question

Discuss briefly the following:(a) Greenhouse gases(b) Noise pollution(c) Organic farming(d) Municipal solid wastes

Answer 1

Greenhouse gas, any gas that has the property of absorbing infrared radiation (net heat energy) emitted from Earth’s surface and reradiating it back to Earth’s surface, thus contributing to the greenhouse effect. Carbon dioxide, methane, and water vapour are the most important greenhouse gases.  Noise pollution is generally defined as regular exposure to elevated sound levels that may lead to adverse effects in humans or other living organisms. Organic farming is a method of crop and livestock production that involves much more than choosing not to use pesticides, fertilizers, genetically modified organisms, antibiotics and growth hormones.
Municipal solid waste includes commercial and domestic wastes generated in municipal or notified areas in either solid or semi-solid form excluding industrial hazardous wastes but including treated bio-medical wastes

Answer 2

The description is given below :

(a) Greenhouse Gases

The effect which the greenhouse gases causes is termed as greenhouse effect. It is the condition where there occurs abnormal heating of the surface of Earth. CO2 and CH4 (Methane) are the main such gases.

(b) Noise Pollution

It is the kind of pollution which is caused due to high levels of noises and sounds from different sources. It causes harm to the organism's health and can also damage our ears. Machine, transport, etc causes this pollution.

(c) Organic Farming

This farming is cyclic type and does not produce any wastes. Here, the waste substances from 1 process are cycled in the form of nutrients for other process.

(d) Municipal solid wastes

These are the wastes which comes from houses, shops, offices, schools, hospitals, etc. Examples : plastics, metals, glass, papers, etc.