[Mission 2022] QUIZ – 2020: INSIGHTS STATIC QUIZ , 29 September 2021 – Environment

Solution: b)

Key facts- Gangetic dolphin:

1. Platanista gangetica has been declared endangered by International Union for Conservation of Nature (IUCN). 
2. It has rudimentary eyes. From preying to surfing, dolphins do it through ultrasonic sound.
3. It is India’s national aquatic animal and is popularly known as ‘Susu’
4. They are distributed across seven states in India: Assam, Uttar Pradesh, Madhya Pradesh, Rajasthan, Bihar, Jharkhand and West Bengal.

The Ganges River flow through the states of Uttarakhand, Uttar Pradesh, Bihar, West Bengal.

Solution: d)

Reasons for the decline:

• Illegal sand mining.
• Overuse of river water.
• Changing River course.
• Inland waterways / Movement of large cargo vessels.
• Various anthropogenic / religious activities.
• Accidental killing – by catch/ fisheries related entanglements.

Solution: c)

Four more Indian sites – two each from Haryana and Gujarat – have been recognised as wetlands of international importance under the Ramsar Convention, taking the number of such sites in the country to 46.

For the first time, two wetlands in Haryana – Sultanpur National Park in Gurgaon and Bhindawas Wildlife Sanctuary in Jhajjar – have been included in the Ramsar list.

The aim of the Ramsar list is “to develop and maintain an international network of wetlands which are important for the conservation of global biological diversity and for sustaining human life through the maintenance of their ecosystem components, processes and benefits”.

In India, Wetlands are regulated under the Wetlands (Conservation and Management) Rules, 2017.

Source

Solution: d)

The 46 Ramsar sites in India include the Chilika Lake in Odisha, Keoladeo National Park in Rajasthan, Harike Lake in Punjab, Loktak Lake in Manipur and Wular Lake in Jammu and Kashmir.

Source

Solution: b)

Geologic Sequestration Trapping Mechanisms

• Hydrodynamic Trapping: Carbon dioxide can be trapped as a gas under low-permeability cap rock (much like natural gas is stored in gas reservoirs).
• Solubility Trapping: Carbon dioxide can be dissolved into a liquid, such as water or oil.
• Mineral Carbonation: Carbon dioxide can react with the minerals, fluids, and organic matter in a geologic formation to form stable compounds/minerals; largely calcium, iron, and magnesium carbonates.