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GeographyMediumAsked in: CDS · CDS-II 2020, GK

Which one of the following lakes in India has a large quantity of a substance found in the Moon?

  1. A.Lonar Lake, Maharashtra
  2. B.Pangong Lake, Ladakh
  3. C.Chilika Lake, Odisha.
  4. D.Loktak Lake, Manipur

Correct answer

A. Lonar Lake, Maharashtra

Explanation

The correct answer is A, Lonar Lake, Maharashtra. Lonar was formed by a meteorite impact, and its rocks contain maskelynite, a natural glass that forms only under such high-velocity impacts and is also found in lunar rocks.

Lonar Lake in Buldhana district sits in a crater about 1.8 km across, blasted by a meteorite into the basalt of the Deccan Traps. Because it is one of the few impact craters in basaltic rock, it resembles craters on the Moon and is studied as a natural laboratory. Its water is both saline and alkaline, and it was declared a Ramsar site in 2020. In 2020 its water also turned pink for a while because of salt-loving microbes.

B is wrong because Pangong Tso is a high-altitude saline lake in Ladakh shared with Tibet, formed by tectonic processes. C is wrong because Chilika is a brackish-water lagoon on the Odisha coast. D is wrong because Loktak is a freshwater lake known for its floating phumdis and Keibul Lamjao National Park.

Exam tip: Lonar means meteorite crater in basalt; Loktak means phumdis; Chilika means lagoon; Pangong means high-altitude saline lake.

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Q3.GeographyAsked in: CDS · CDS-I 2023, GKMedium

Indus river basin is extended up to

  1. A.Ladakh, Jammu and Kashmir, Himachal Pradesh, Punjab
  2. B.Ladakh, Jammu and Kashmir, Punjab, Haryana
  3. C.Ladakh, Jammu and Kashmir, Punjab, Haryana, Rajasthan
  4. D.Ladakh, Jammu and Kashmir, Himachal Pradesh, Punjab, Haryana, Rajasthan
Show answer
Correct answer: D. Ladakh, Jammu and Kashmir, Himachal Pradesh, Punjab, Haryana, Rajasthan

The Indian part of the Indus basin covers all six, along with Chandigarh. The Indus rises near Lake Mansarovar in Tibet and enters India in Ladakh.