QUIZ – 2020: INSIGHTS STATIC , 31 May 2021 – Environment

Solution: c)

Water Vapour is the biggest overall contributor to the greenhouse effect and humans are not directly responsible for emitting this gas in quantities sufficient to change its concentration in the atmosphere. However, CO2 and other greenhouse gases is increasing the amount of water vapour in the air by boosting the rate of evaporation.

Unlike CO2, which can persist in the air for centuries, water vapour cycles through the atmosphere quickly, evaporating from the oceans and elsewhere before coming back down as rain or snow.

Solution: d)

• Tso Kar Basin is a high-altitude wetland complex, consisting of two principal waterbodies, Startsapuk Tso, a freshwater lake and Tso Kar itself, a hyper saline lake, situated in the Changthang region of Ladakh, India.
• It is called Tso Kar, meaning white lake, because of the white salt efflorescence found on the margins due to the evaporation of highly saline water.
• It is also an Important Bird Area (IBA) as per BirdLife International and a key staging site in the Central Asian Flyway.

Solution: b)

Currently, two wetlands of India are in Montreux record: Keoladeo National Park (Rajasthan) and Loktak Lake (Manipur).

Chilka lake (Odisha) was placed in the record but was later removed from it.

Solution: c)

A carbon credit is a generic term for any tradable certificate or permit representing the right to emit one tonne of carbon dioxide or the equivalent amount of a different greenhouse gas.

The United Nations’ Intergovernmental Panel on Climate Change (IPCC) developed a carbon credit proposal to reduce worldwide carbon emissions in a 1997 agreement known as the Kyoto Protocol. The agreement set binding emission reduction targets for the countries that signed it. Another agreement, known as the Marrakesh Accords, spelled out the rules for how the system would work.

Solution: d)

Rice cultivation is both an important sequester of carbon dioxide from the atmosphere and an important source of greenhouse gases (e.g. methane and nitrite oxide) emission.

Under anaerobic condition of submerged soils of flooded rice fields, methane is produced and much of it escapes from the soil into the atmosphere.

The burning of rice residues such as straw and husks also contributes to greenhouse gas emission. Similarly the inefficient application of nitrogen fertilizers in rice production systems promotes the release of nitrous oxide, a potent greenhouse gas, into the atmosphere.

Source