Deserts - GS questions based on daily current affairs

1)   Why major hot deserts are located between 20-30 degree North latitude on Western Side ?

1. High atmospheric pressure found near 30° latitude lines
2. Eastern region of 20-30N receive rain due to moisture laden trade winds, but they become dry till they reaches western side
3. Relative humidity is very low in the desert

Which of the above statements is/are correct?

a. 1,2
b. 1,3
c. 2,3
d. All
Answer  Explanation 

ANSWER: All

Explanation:
The Sahara and Australian deserts are caused by regions of high
atmospheric pressure found near 30° latitude lines. High pressure prevents air near the ground from rising and cooling. The eastern region of 20-30N receive rain due to moisture laden trade winds, but by the time they reach western side, they become dry. The air becomes saturated with the water vapor at given temperature and pressure, it results into cloud formation. But Relative humidity is very low in the desert, every droplets of moisture is evaporated before the air becomes saturated with water. Hence lack of cloud formation.
2)   Consider the following statements

1. The United Nations Convention to Combat Desertification is the first and only internationally legally binding framework set up to address the problem of desertification.
2. One ratifying state Canada has announced its denunciation the convention.
3. India is party to convention

Which of the above statements are correct?

a. 1,2
b. 1,3
c. 2,3
d. All
Answer  Explanation 

ANSWER: All

Explanation:
The United Nations Convention to Combat Desertification is for the countries who are experiencing Serious Drought and/or Desertification, particularly in Africa. It is to combat desertification and mitigate the effects of drought through national action programs that incorporate long-term strategies supported by international cooperation and partnership arrangements. It was adopted in Paris, France on 17 June 1994 and entered into force in December 1996. It is the first and only internationally legally binding framework set up to address the problem of desertification. One ratifying state ”Canada” has announced its denunciation the convention. Otherwise all UN members are party to this convention.

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