2631: Which of the following leaf modifications occur(s) in the desert areas to inhibit water loss?
1. Hard and waxy leaves
2. Tiny leaves
3. Thorns instead of leaves
Select the correct answer using the code given below :
(a) 2 and 3 only
(b) 2 only
(c) 3 only
(d) 1, 2 and 3
2632: A person of mixed European and Indian blood in Latin America is called a
(a) Mulatto
(b) Mestizo
(c) Meiji
(d) Mau Mau
2633: The Second Round Table Conference was held in
(a) 1930
(b) 1931
(c) 1932
(d) 1935
2634: Which of the following adds/add nitrogen to the soil?
1. Excretion of urea by animals
2. Burning of coal by man
3. Death of vegetation
Select the correct answer using the codes given below.
(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
2635: About 50% of the world population is concentrated between the latitudes of
(a) 5°N and 20°N
(b) 20°N and 40°N
(c) 40°N and 60°N
(d) 20°S and 40°S