Tag: our changing earth

Questions Related to our changing earth

Long sinuous ridges found in former glacial sites in the direction of ice melted water streams are known as ________.

  1. Eskers

  2. Fjords

  3. Erratics

  4. Drumlins


Correct Option: A
Explanation:

Long sinous ridges found in former glacial sites in the direction of ice melted water strems are known as Eskers.

An esker, eskar, eschar, or os, sometimes called an asar, osar, or serpent kame, is a long, winding ridge of stratified sand and gravel, examples of which occur in glaciated and formerly glaciated regions of Europe and North America.

Northern most part in India is ____________.

  1. Gangotri glacier

  2. Siachen glacier

  3. Baltoro glacier

  4. Nubra glacier


Correct Option: B
Explanation:

Siachen Glacier lies in Northern Ladakh in the Karakorams, a mountain range originating from the Pamirs. The total area of Siachen Glacier is approximately 78 sq-km. 

Drowned glaciated valleys in high latitude regions are known as _______.

  1. Fjords

  2. Ocean ridges

  3. Sub-marine canyons

  4. Glaciated vaIleys


Correct Option: A
Explanation:

Drowned glaciated valleys in high latitude regions are known as Fjords.
Fjords are found in locations where current or past glaciation extended below current sea level. A fjord is formed when a glacier retreats, after carving its typical U-shaped valley, and the sea fills the resulting valley floor.

Eskers and Drumlins are features formed by ________.

  1. running water

  2. underground water

  3. the action of wind

  4. glacial action


Correct Option: D

Choose or find the odd word: Mountain, Valley, Glacier, Coast, Ridge :

  1. Mountain

  2. Valley

  3. Glacier

  4. Coast

  5. Ridge


Correct Option: C

Baltora glacier is located in

  1. Pamir plateau

  2. Shivalik

  3. Karakoram ranges

  4. Alps


Correct Option: C
Explanation:

The Baltoro Glacier, at 63 km in length, is one of the longest glaciers outside the polar regions. It is located in the Gilgit-Baltistan region of Pakistan-administered Kashmir, and runs through part of the Karakoram mountain range.

Drowned glaciated valleys in high latitude regions are known as _______.

  1. Fiords

  2. Ocean ridges

  3. Sub-marine canyons

  4. Glaciated valleys


Correct Option: A

Hanging valleys are formed due to the action of ______.

  1. river

  2. glacier

  3. waves of the ocean

  4. volcanic eruption


Correct Option: B

The Ganges originates from the _______  Glacier in Uttarakhand.

  1. Siachen

  2. Nubra

  3. Rimo

  4. Gangotri


Correct Option: D
Explanation:

Gangotri Glacier is located in Uttarkashi District, Uttarakhand, India in a region bordering China. This glacier, one of the primary sources of the Ganges, is one of the largest in the Himalayas with an estimated volume of over 27 cubic kilometers. Around the glacier are the peaks of the Gangotri Group, including several peaks notable for extremely challenging climbing routes, such as Shivling, Thalay Sagar, Meru, and Bhagirathi III. It flows roughly northwest, originating in a cirque below Chaukhamba, the highest peak of the group.

What causes the 'U' shaped valley?

  1. River

  2. Rain

  3. Sea waves

  4. Glacier


Correct Option: D
Explanation:

U-shaped valley is the landform curved by the erosional work of glacier. U-shaped valley has steep valley walls with concave slope and broad and flat valley floor. The U-shaped valley is found in the cross-section of a glacial valley or glacial troughs of mountain glaciers.