Physical Geography (UPSC) (Part-II)

Total Questions: 50

1. Which one of the following is not a lagoon? [2002]

(a) Ashtamudi lake
(b) Chilka lake
(c) Periyar lake
(d) Pulicat lake

Correct Answer: (c) Periyar lake

Solution:

Periyar Lake is favoured by the construction of the dam across the Mullaperiyar River. It is an artificial lake in the middle of the Periyar wildlife sanctuary.

2. Which one of the following statements is correct with reference to our solar system? [2002]

(a) The earth is the densest of all the planets in our solar system
(b) The predominant element in the composition of earth is silicon
(c) The sun contains 75 percent of the mass of the solar system
(d) The diameter of the sun is 190 times that of the earth

Correct Answer: (a) The earth is the densest of all the planets in our solar system

Solution:The earth is the densest of all the planet. Density of Earth is 5.52, Venus-5.50, Mercury 5.27, Mars-3.95, Jupiter and Saturn-0.69, Uranus -1.27.

3. Assertion (A): The amount of moisture in the atmosphere is related to latitude [2003]

Reason (R): The capacity to hold moisture in the form of water vapour is related to temperature

(a) Both A and R are individually true and R is the correct explanation of A
(b) Both A and R are individually true but R is not the correct explanation of A
(c) A is true but R is false
(d) A is false but R is true

Correct Answer: (a) Both A and R are individually true and R is the correct explanation of A

Solution:The amount of moisture in atmosphere is related to latitude because the temperature depends upon the latitude and capacity to hold moisture is related to temperature.

4. Assertion (A): Unlike temperate forests, the tropical rain forests, if cleared, can yield productive farmland that can support intensive agriculture for several years even without chemical fertilizers. [2003]

Reason (R): The primary productivity of the tropical rain forest is very high when compared to that of temperate forests.

(a) Both A and R are individually true and R is the correct explanation of A.
(b) Both A and R are individually true but R is not the correct explanation of A
(c) A is true but R is false
(d) A is false but R is true

Correct Answer: (d) A is false but R is true

Solution:Due to Constant rain in tropical rain forests the nutrients in the soil continuously leaches out. To compensate for the loss the additional minerals and essential elements are required through Chemical fertilizers.

5. Assertion (A): Areas lying within five to eight degrees latitude on either side of the equator receive rainfall throughout the year. [2003]

Reason (R): High temperatures and high humidity cause convectional rain to fall mostly in the afternoons near the equator.

(a) Both A and R are individually true and R is the correct explanation of A
(b) Both A and R are individually true but R is not the correct explanation of A
(c) A is true but R is false
(d) A is false but R is true

Correct Answer: (a) Both A and R are individually true and R is the correct explanation of A

Solution:The highest rainfall totals occur near the equator in the tropics, where the strong heating by the sun creates significant vertical uplifts of air and the formation of prolonged heavy showeas and frequent thunderstorms.

6. Which one among the following covers the highest percentage of forest area in the world? [2003]

(a) Temperate coniferous forests
(b) Temperate deciduous forests
(c) Tropical monsoon forests
(d) Tropical rain forests

Correct Answer: (a) Temperate coniferous forests

Solution:Temperate coniferous forests covers the highest percentage of forest area in the world.

7. Among the following, which planet takes maximum time for one revolution around the Sun? [2003]

(a) Earth
(b) Jupiter
(c) Mars
(d) Venus

Correct Answer: (b) Jupiter

Solution:Jupiter takes maximum time for one revolution i.e., 11 year 86 days. Mars take 687 days, Venus takes 267 days.

8. Assertion (A) : Thickness of the atmosphere is maximum over the Equator. [2004]

Reason (R) : High insolation and strong convection currents occur over the Equator.

(a) Both A and R are individually true and R is the correct explanation of A
(b) Both A and R are individually true but R is not the correct explanation of A
(c) A is true but R is false
(d) A is false but R is true

Correct Answer: (a) Both A and R are individually true and R is the correct explanation of A

Solution:Thickness of the atomsphere (troposphere) is maximum over the equator. Because, the equator receives the maximum insolation due to direct from the sun. This leads to warming and causes the air to creating strong convention currents.

9. Where is the volcanic mountain, Mount St. Helens located? [2005]

(a) Chile
(b) Japan
(c) Philippines
(d) United States of America

Correct Answer: (d) United States of America

Solution:Volcanic mountain. St. Helen is located in United States of America.

10. Assertion (A) : The same face of the moon is always presented to the earth. [2005]

Reason (R) : The moon rotates about its own axis in 23 and half days which is about the same time that it takes to orbit the earth.

(a) Both A and R are true and R is the correct explanation of A
(b) Both A and R are true but R is NOT a correct explanation of A
(c) A is true but R is false
(d) A is false but R is true

Correct Answer: (c) A is true but R is false

Solution:The moon rotates about its own axis in 27.322 days. When the Moon first formed, its rotational speed and orbit were very different than they are now. Over time, the Earth's gravitational field gradually slowed the Moon's rotation until the orbital period and the rotational speed stabilized, making one side of the moon always face the Earth.

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Physical Geography (UPSC) (Part-II)

1. Which one of the following is not a lagoon? [2002]

2. Which one of the following statements is correct with reference to our solar system? [2002]

3. Assertion (A): The amount of moisture in the atmosphere is related to latitude [2003]

4. Assertion (A): Unlike temperate forests, the tropical rain forests, if cleared, can yield productive farmland that can support intensive agriculture for several years even without chemical fertilizers. [2003]

5. Assertion (A): Areas lying within five to eight degrees latitude on either side of the equator receive rainfall throughout the year. [2003]

6. Which one among the following covers the highest percentage of forest area in the world? [2003]

7. Among the following, which planet takes maximum time for one revolution around the Sun? [2003]

8. Assertion (A) : Thickness of the atmosphere is maximum over the Equator. [2004]

9. Where is the volcanic mountain, Mount St. Helens located? [2005]

10. Assertion (A) : The same face of the moon is always presented to the earth. [2005]

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