Questions and answers for exam Preparation

MCQs

Total Questions : 10

Assertion (A): The surface winds spiral inwards upon the centre of the cyclone.
Reason (R): Air descends in the centre of the cyclone.

Both A and R are true and R is the correct explanation of A
Both A and R are true but R is NOT the correct explanation of A
A is true but R is false
A Js false but R is true

Discuss Question

Answer: Option C. -> A is true but R is false
:
C

Ans. (c)

Explanation

'A' is correct but 'R' is wrong. The surface winds spiral inwards upon the centre of the cyclone, in the eye of the cyclone air ascends. However, the central portion of the eye has a small counter current where air descends.

Question 2.

Quartzite is metamorphosed from

Limestone
Obsidian
Sandstone
Shale

Discuss Question

Answer: Option C. -> Sandstone
:
C

Ans. (c)

Explanation

Quartzite is metamorphosed from Sandstone while Shale is from Slate.

Question 3.

If the stars are seen to rise perpendicular to the horizon by an observer, he is located on the

Equator
Tropic of Cancer
South Pole
North Pole

Discuss Question

Answer: Option A. -> Equator
:
A

Ans. (a)

Question 4.

Assertion (A): 60^o – 65^o latitudes in both the hemispheres have a low pressure belt instead of high pressure.
Reason (R): the low pressure areas are permanent over oceans rather than on land.

Both A and R are true and R is the correct explanation of A
Both A and R are true but R is NOT the correct explanation of A
A is true but R is false
A Js false but R is true

Discuss Question

Answer: Option B. -> Both A and R are true but R is NOT the correct explanation of A
:
B

Ans. (b)

Explanation

Both Statements are correct. But R is not the correct reason for A. it is due to the rotational movement of the earth that these low and high pressure belts are formed.

Question 5.

Assertion (A): During the Neap Tides, the high tide is lower and the low tide is higher than usual.
Reason (R): The Neap Tide, unlike the Spring Tide, occurs on the New Moon instead of on the Full Moon.

Both A and R are true and R is the correct explanation of A
Both A and R are true but R is NOT the correct explanation of A
A is true but R is false
A Js false but R is true

Discuss Question

Answer: Option C. -> A is true but R is false
:
C

Ans. (c)

Explanation

The reason for lower high tide and higher low tide is - as it occurs on the new moon. So the gravitational pull of the moon is less than the full moon.

Question 6.

Consider the following statements made about the sedimentary rocks :
1. Sedimentary rocks are formed at earth's surface by the hydrological system.
2. The formation of sedimentary rocks involves the weathering of pre-existing rocks.
3. Sedimentary rocks contain fossils.
4. Sedimentary rocks typically occur in layers.
Which of these statements are correct?

1 and 2
1 and 4
2, 3 and 4
1, 2, 3 and 4

Discuss Question

Answer: Option D. -> 1, 2, 3 and 4
:
D

Ans. (d)

Explanation

All the statements are correct.

The weathered material of the pre-existing rocks is transformed by the hydrolised systems and is deposited elsewhere in layers. They contain fossils.

Question 7.

cloudy nights are warmer compared to clear cloudless nights, because clouds

perevent cold waves from the sky from descending on earth
reflect back the heat given off by earth
produce heat and radiate it towards earth
absorb heat from the atmosphere and send it towards earth

Discuss Question

Answer: Option B. -> reflect back the heat given off by earth
:
B

Ans. (b)

Explanation

Cloudy nights are warmer compared to clear cloudless nights, because clouds reflects back the heat given off by the earth.

Question 8.

Consider the following climatic and geographical phenomena :
1. Condensation
2. High temperature and humidity
3. Orography
4. Vertical wind
Thunder Cloud development is due to which of these phenomena?

1 and 2
2, 3 and 4
1, 3 and 4
1, 2, 3 and 4

Discuss Question

Answer: Option D. -> 1, 2, 3 and 4
:
D

Ans. (d)

Explanation

The thunder cloud develops by all the above climatic and geographical phenomena.

High temperature and humidity causes the wind to rise vertically up, due to Orography or pressure of mountains.

These winds get condensated and form Cumulonimbus clouds or thunder clouds.

Question 9.

Identify the correct order of the processes of soil-erosion from the following :

Splash erosion, Sheet erosion, Rill erosion, Gully erosion
Sheet erosion, Splash erosion, Gully erosion, Rill erosion
Rill erosion, Gully erosion, Sheet erosion, Splash erosion
Gully erosion, Rill erosion, Sheet erosion, Splash erosion

Discuss Question

Answer: Option A. -> Splash erosion, Sheet erosion, Rill erosion, Gully erosion
:
A

Ans. (a)

Explanation

The correct order of soil erosion process is Splash-Sheet-Rill - Gully and Ravine erosion.

Question 10.

Consider the following statements :
1. In equatorial regions, the year is divided into four main seasons.
2. In Mediterranean region, summer receives more rain.
3. In China type climate, rainfall occurs throughout the year.
4. Tropical highlands exhibit vertical zonation of different climates.
Which of these statements are correct?

1, 2, 3 and 4
1, 2 and 3
1, 2 and 4
3 and 4

Discuss Question

Answer: Option D. -> 3 and 4
:
D

Ans. (d)

Explanation

Only 3, 4 are correct. Because in equatorial regions there is no clear distinction of main seasons. In Mediterranean area there is rainfall during the winter but not in summer.