[Mission 2022] QUIZ – 2022: INSIGHTS STATIC QUIZ, 10 December 2021 – Environment – INSIGHTSIAS

Solution: c)

Nitrates not only affect surface water but also pollute groundwater sources.

Nitrous oxide (N2O) gas should not be confused with nitric oxide (NO) or nitrogen dioxide (NO2). Neither nitric oxide nor nitrogen dioxide are greenhouse gases. Nitrous oxide is a greenhouse gas.

Nitrogen particles make up the largest fraction of PM2.5, the class of pollutants closely linked to cardiovascular and respiratory illness

Though agriculture remains the largest contributor to nitrogen emissions, the non-agricultural emissions of nitrogen oxides and nitrous oxide are growing rapidly, with sewage and fossil-fuel burning — for power, transport and industry — leading the trend.

Solution: a)

These are some of the most potent and longest lasting type of greenhouse gases emitted by human activities.

They are emitted through a variety of industrial processes such as aluminum and semiconductor manufacturing and Substitution for Ozone-Depleting Substances.

They have very high global warming potentials (GWPs) relative to other greenhouse gases.

Solution: b)

A natural source of nitrogen oxides occurs from a lightning stroke. The very high temperature in the vicinity of a lightning bolt causes the gases oxygen and nitrogen in the air to react to form nitric oxide. The nitric oxide very quickly reacts with more oxygen to form nitrogen dioxide.

Nitrous oxide emissions occur naturally through many sources associated with the nitrogen cycle, which is the natural circulation of nitrogen among the atmosphere, plants, animals, and microorganisms that live in soil and water.

Nitrous oxide is actually removed from the atmosphere when it is absorbed by certain types of bacteria or destroyed by ultraviolet radiation or chemical reactions

Solution: d)

Solution: a)

The waste materials which cannot be broken down into non-poisonous or harmless substances in nature are called non-biodegradable waste. Examples are plastics, polythene bags, ball-point pen refills, synthetic fibres, and glass objects, metal articles like aluminium cans, iron nails, silver foil and radioactive wastes.

Cotton cloth, paper, woollen clothes, wood etc. are bio-degradable. Some of the common examples of bio-degradable material are as follows: Paper bags; cardboard Boxes; Paper cups and plates; Jute products; Cotton products; Tissue paper; Plates and trays made up of Leaves.