Questions and answers for exam Preparation

MCQs

Total Questions : 392 | Page 8 of 40 pages

Question 71. Landmasses are heated and cooled much faster than water bodies. Identify the true statements in this regard.

The land gets heated by conduction

Water has a higher specific heat

Only the surface layers of water are heated

Water gets heated by convection

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

Discuss Question

Answer: Option C. -> 1, 2 and 4
Answer: (c)

Question 72. Although hot deserts have a very low annual rainfall, occasional heavy rain storms do occur and these sometimes produce steep-sided, flat-floored valleys called

wadi
gorges
barchan
canyons

Discuss Question

Answer: Option A. -> wadi
Answer: (a)

Question 73. Consider the following statements:

The approach of a cyclone is characterised by a rise in barometric reading.

In the cyclones of the southern hemisphere, the winds circulate in an anticlockwise direction.

Which of the statements given above is/are correct?

2 only
1 only
Neither 1 nor 2
Both1 and 2

Discuss Question

Answer: Option D. -> Both1 and 2
Answer: (d)
Cyclone is a mass of air whose isobars form an oval or circular shape, with low pressure at the centre.
The air converges at the centre and rises to disposed of. In a depression, the winds rotate anticlockwise in the northern hemisphere. While in the southern hemisphere, the circular movement of winds is in a clockwise direction.

Question 74. Which region of the Earth’s surface is called doldrums?

Sub-tropical high pressure belt
Equatorial low pressure belt
Sub-polar low pressure belt
Between 10° to 23.5° North and South Latitudes

Discuss Question

Answer: Option B. -> Equatorial low pressure belt
Answer: (b) The air at the equator is generally rising. For this reason, there is little wind in the region. This region of light shifting winds near the equator is called the doldrums.

Question 75. Which one of the following is the correct sequence of increasing the velocity of wind?

Fresh breeze-Light breeze-Hurricane-Gale
Light breeze-Fresh breeze-Gale-Hurricane
Hurricane-Light breeze-Gale-Fresh breeze
Light breeze-Gale-Fresh breeze-Hurricane

Discuss Question

Answer: Option B. -> Light breeze-Fresh breeze-Gale-Hurricane
Answer: (b)
The correct sequence is Light breeze-Fresh breeze-Gale-Hurricane.

Question 76. The diagram given below shows the schematic relations of temperature and precipitation of tropical climatic type over land: Decreasing Temperature 1234 Increasing Precipitation Arrange the climatic types in the correct sequence from left to right:

Monsoon topics
Wet and dry tropics
Arid and semiarid
Rainy tropics.

Select the correct answer using the code given below.

4-3-2-1
1-4-3-3
3-2-1-4
2-1-3-4

Discuss Question

Answer: Option C. -> 3-2-1-4
Answer: (c)

Question 77. If tropical rain forest is removed, it does not regenerate quickly as compared to a tropical deciduous forest. This is because

Propagules of the trees in a rain forest have poor viability
The soil of rain forest is deficient in nutrients
Exotic species invade the fertile soil of rain forest
The rain forest species are slow growing

Discuss Question

Answer: Option B. -> The soil of rain forest is deficient in nutrients
Answer: (b)

Question 78. In which of the following areas, the main centre of ‘Hurricane Mathew’ that occurred in the Caribbean Sea in the 1st week of October 2016 was located?

Georgia
Florida
South-West Haitti
South Carolina

Discuss Question

Answer: Option C. -> South-West Haitti
Answer: (c)
As of 11:00 EST on 3rd Oct. Category-4, Hurricane Mathew was some 330 km.
Southwest from Kingstone (Jamaica) and 440 km South-West from Ports64-Prince (Haiti) in the Caribbean Sea.

Question 79. Which one of the following zones of the atmosphere is rich in ozone gas?

Troposphere
Mesosphere
Ionosphere
Stratosphere

Discuss Question

Answer: Option D. -> Stratosphere
Answer: (d)Stratosphere is rich in Ozone gas.

Question 80. Which one of the following statements is true about tropopause?

Its average height is about 10 km over the equator.
It is about 5 km thick layer.
The temperature at its top is lowest over the equator and relatively higher over the poles.
There is no seasonal variation in its height.

Discuss Question

Answer: Option C. -> The temperature at its top is lowest over the equator and relatively higher over the poles.
Answer: (c)
The tropopause is the boundary in the Earth’s atmosphere between the troposphere and the stratosphere. The tropopause is higher than the global average in warm regions (e.g., tropics) and lower in cold regions (e.g., polar regions).
If the atmosphere is warming due to climate change, then we might expect the height of the tropopause to increase.