Indian Geography UPPSC 2010 GS-I
Question

Which layer of atmosphere is responsible for Aurora Borealis:

Answer & Solution

Answer: (Detailed Solution Below)

Option C: Ionosphere

Detailed Solution:

The correct answer is “Ionosphere”.

The thermosphere is the layer of the Earth's atmosphere where the Aurora Borealis, or Northern Lights, occur.

Similar Questions:

In the development of hydroelectric power the pioneering state in India was:
  1. H.P.
  2. Karnataka
  3. Tamil Nadu
  4. Uttar Pradesh
At the winter solstice the noon altitude of the sun at the Tropic of Cancer is:
  1. 23.5°
  2. 43.0°
  3. 47.0°
  4. 66.5°
Which of the following pairs is not correctly matched?
  1. Sardar Sarovar Dam - Narmada River
  2. Tilaiya Dam - Konar River
  3. Gandhi Sagar Dam - Chambal River
  4. Nagarjuna Sagar Dam - Krishna River
Match List-I and List-II and select the correct answer using the codes given below the list:
List-I States - List-II Highest Peak

A. Kerala - 1. Dodda Betta
B. Nagaland - 2. Nanda Devi
C.Uttarakhand - 3. AnaiMudi
D. Tamil Nadu - 4. Saramati
  1. 1 3 4 2
  2. 2 3 4 1
  3. 3 4 2 1
  4. 1 2 3 4
Given below are two statements, one is labeled as Assertion (A) and the other as Reason (R).

Assertion (A) : Agra and Darjeeling are located on the same latitude but temperature of January in Agra is 16° Centigrade whereas it is only 4° Centigrade in Darjeeling.
Reason (R) : Temperature decreases with height and due to thin air, places in the mountains are cooler than places in the plains.

Select the correct answer from the code given below:

Code:
  1. (A) is false but (R) is true
  2. (A) is true but (R) is false
  3. Both (A) and (R) are true but (R) is not the correct explanation of (A)
  4. Both (A) and (R) are true and (R) is the correct explanation of (A)
Make the pairs of chief rivers of their place of origin -
Rivers - Place of origin

(A) Yamuna - (1) Sihawa
(B) Krishna - (2) Nasik
(C) Godavari - (3) Mahabaleshwar
(D) Mahanadi - (4) Yamunotri
  1. A-(4), B-(3), C-(2), D-(1)
  2. A-(1), B-(2), C-(3), D-(4)
  3. A-(4), B-(2), C-(1), D-(3)
  4. A-(4), B-(2), C-(3), D-(1)
In population pyramid which of the following is known as dependent population?
  1. 15-60 year group
  2. Above 60 Year group
  3. Above 50 year group
  4. 0-14 years group
Which one of the following causes is responsible for rainfall during winters in the northwestern part of India?
  1. Retreating depression
  2. Cyclonic depression
  3. Western disturbances
  4. South-West Monsoon
Match the List-I and List-II and select the correct answer from the codes given below
List-I (Mountain Pass) - List-Il (State)

(A) Mana - (1) Sikkim
(B) Nathula - (2) Jammu & Kashmir
(C) Zozila - (3) Himachal Pradesh
(D) Sipki La - (4) Uttarakhand
  1. A-2, B-3, C-1, D-4
  2. A-4, B-3, C-2, D-1
  3. A-4, B-1, C-2, D-3
  4. A-4, B- I, C-3, D-2
Assertion (A) : The rivers of West Coast of India do not form delta.
Reason (R) : They flow through short courses on relatively harder rocks.


Choose the correct answer using the codes given below:
Codes:
  1. Both (A) and (R) are correct and (R) is the correct explanation of (A).
  2. Both (A) and (R) are correct but, (R) is not the correct explanation of (A).
  3. (A) is true, but (R) is false.
  4. (A) is false, but (R) is correct.
On which one of the following rivers is 'Tulbul' Project located ?
  1. Chenab
  2. Ravi
  3. Beas
  4. Jhelum
Which one of the following crops is the greatest beneficiary of the Green Revolution in both production and productivity?
  1. Jawar
  2. Maize
  3. Rice
  4. Wheat