Question 1

Which international agreement specifically aims to reduce the emissions of greenhouse gases?

Accepted Answer

Kyoto Protocol. The Kyoto Protocol was adopted in 1997 to commit industrialized nations to reduce greenhouse gas emissions. It is based on the principle of common but differentiated responsibilities. This treaty was later followed by the Paris Agreement.

Question 2

What is the primary pollutant responsible for the phenomenon of 'Acid Rain'?

Accepted Answer

Sulphur Dioxide. Sulphur Dioxide reacts with water vapor in the atmosphere to form sulphuric acid. This process results in precipitation with a low pH value. Nitrogen oxides also contribute significantly to this environmental issue.

Question 3

Which of the following is a primary air pollutant?

Accepted Answer

Particulate Matter. Particulate matter is emitted directly into the atmosphere from sources like vehicles and factories. It consists of microscopic solids or liquid droplets. Secondary pollutants like ozone are formed through chemical reactions in the air.

Question 4

The 'Minamata Convention' is an international treaty designed to protect human health from which substance?

Accepted Answer

Mercury. The Minamata Convention focuses on reducing mercury emissions and releases into the environment. Mercury is a toxic heavy metal that accumulates in the food chain. It is named after a Japanese city devastated by mercury poisoning.

Question 5

Which layer of the atmosphere contains the ozone layer that protects us from UV rays?

Accepted Answer

Stratosphere. The Stratosphere houses the highest concentration of ozone gas. This layer absorbs most of the Sun's harmful ultraviolet radiation. Thinning of this layer can lead to increased skin cancer rates.

Pollution & Protocols — Set 1