Tag: wind and coast

Questions Related to wind and coast

The steep rocky coast rising almost vertically above sea water is called ________________.

  1. Sea waves

  2. Sea arches

  3. Stacks

  4. Sea cliff


Correct Option: D
Explanation:

  • Sea-waves continuously strike at the rocks. Cracks develop. Over time they become larger and wider. Thus, hollow like caves are formed on the rocks. They are called sea caves.
  •  As these cavities become bigger and bigger only the roof of the caves remains, thus forming sea arches.
  •  Further, erosion breaks the roof and only walls are left. These wall-like features are called stacks.
  • The steep rocky coast rising almost vertically above seawater is called sea cliff. 

India's highest waterfall i.e. the Jog falls is located in _________.

  1. Maharastra

  2. Madhya Pradesh

  3. Himachal Pradesh

  4. Karnataka


Correct Option: D
Explanation:

The Jog water falls created by the Sharavathi river in sharavathi valley of Shimoga district in Karnataka. Its a breathtaking spectacle when Sharavathi river is falling from a height of 829 ft.

Which of the following river does not have a delta at its egress?

  1. Tapi

  2. Godavari

  3. Cauvery

  4. Mahanadi


Correct Option: A
Explanation:

Tapi river does not have a delta at its egress. The Tapi River is also known as the Tapti River. Tapti is the prehistoric Sanskrit name of the river. Tapi is a major River in central India . With a stretch of about 724 km, it is also one of the most crucial rivers in peninsular India.

Deltas are formed where the shores are free of ________.

  1. trees

  2. hard rocks

  3. high tide

  4. none of these


Correct Option: B
Explanation:
Deltas are formed where the shores are free of hard rocks. 
When a river reaches a lake or the sea the water slows down and loses the power to carry sediment . The sediment is dropped at the mouth of the river. Some rivers drop so much sediment that waves and tides can't carry it all away. It builds up in layers forming a delta.

Which of the following is not conducive to the formation of deltas?

  1. Currents and Tides

  2. Calm winds

  3. Absence of large lakes along the course of the river

  4. Sheltered coastline


Correct Option: A
Explanation:

Currents and Tides is not conducive to the formation of deltas. When a river reaches a lake or the sea the water slows down and loses the power to carry sediment . The sediment is dropped at the mouth of the river. Some rivers drop so much sediment that waves and tides can't carry it all away. It builds up in layers forming a delta.

Consider the following rivers.
$1$. Ganga
$2$. Brahmaputra
$3$. Godavari
$4$. Krishna
Which of these rivers build a common delta?

  1. $1$ and $4$

  2. $1$ and $3$

  3. $1$ and $2$

  4. $3$ and $4$


Correct Option: C
Explanation:

The Ganges-Brahmaputra Delta also known as the Brahmaputra Delta, the Sunderbans Delta or the Bengal Delta. It is a river delta in the Bengal region of the South Asia, consisting of Bangladesh and the Indian state of West Bengal.

What is the name of a stream that flows through the deposits of a delta at the mouth of a river?

  1. Canal

  2. Delta-mouth

  3. Lake

  4. Distributary


Correct Option: D
Explanation:

Distributary is called a stream that flows through the deposits of a delta at the mouth of a river. Distributaries are a common feature of river deltas. The phenomenon is known as river bifurcation. The opposite of a distributary is a tributary.

Which of the following combinations of river and city situated on their banks is wrong?

  1. Lucknow - Gomati

  2. Ayodhya - Saryu

  3. Badrinath - Alaknanda

  4. Vijayawada - Narmada


Correct Option: D