Consider the following statements: I. The Steppes of Eurasia are temperate grasslands. II. The Pampas of South America are classified as tropical grasslands. Which of the statements given above is/are correct?
- A.I only
- B.II only
- C.Both I and II
- D.Neither I nor II
Correct answer
Explanation
The correct answer is A, I only. Both the Steppes and the Pampas are mid-latitude grasslands, so only the first statement is right. Statement I is correct: the Steppes stretch across the interior of Eurasia, from Ukraine through Russia and Kazakhstan towards Mongolia, far from the sea, with hot summers, cold winters and low rainfall that supports short grass rather than trees. Statement II is wrong: the Pampas of Argentina and Uruguay lie in the temperate zone, roughly between 30° and 40° south, and are temperate grasslands known for wheat and cattle. Other temperate grasslands are the Prairies of North America, the Veld of South Africa and the Downs of Australia. Tropical grasslands are the savannas, such as the Llanos and Campos of South America and the savanna of Africa. Option B is wrong because statement II is false. Option C is wrong because it accepts statement II. Option D is wrong because statement I is true. Exam tip: Steppes, Prairies, Pampas, Veld and Downs are temperate; Llanos and Campos are tropical.
Practice Questions
View allDry land farming in India is largely confined to areas with rainfall less than
- A.100 cm
- B.85 cm
- C.80 cm
- D.75 cm
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Dryland farming is practised where annual rainfall is below about 75 cm. Indian agriculture is grouped by the source of moisture into irrigated and rainfed farming, and rainfed farming is further divided into dryland and wetland farming.
Read the full explanation →Which of the following statements regarding humidity is/are correct?
1. It is a ratio between the actual amount of water vapour present in the atmosphere and the maximum amount it can hold at a given temperature.
2. When the relative humidity is high, more water evaporates from the skin.
3. Higher the air temperature lower the relative humidity of the air.
Select the answer using the code given below:
- A.1 only
- B.2 and 3 only
- C.1 and 3 only
- D.1, 2 and 3
Show answer
Relative humidity compares the moisture in the air with what the air could hold, and that capacity rises with temperature.
Read the full explanation →Which one among the following processes is NOT part of chemical weathering?
- A.Solution
- B.Hydration
- C.Reduction
- D.Thawing
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Thawing is the melting of ice, a physical change that works on rocks only mechanically.
Read the full explanation →Which one of the following is formed when volcanic ash is carried by running water and is deposited as a sedimentary layer?
- A.Basalt
- B.Lapilli
- C.Slate
- D.Tuff
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Tuff is the rock formed when volcanic ash settles in layers and hardens.
Read the full explanation →Consider the following statements about temperature inversion:
I. This happens when normal lapse rate gets inverted.
II. Winter nights with cloudy skies are conducive for temperature inversion.
III. Polar areas experience inversion throughout the year.
Which of the statements given above are correct?
- A.I and II only
- B.II and III only
- C.I and III only
- D.I, II and III
Show answer
Temperature inversion needs rapid cooling of the ground, which happens under clear skies, not cloudy ones. Statement I is correct: normally temperature falls with height, but during an inversion a layer of warmer air lies above cooler air near the ground, so the normal lapse rate is reversed.
Read the full explanation →