1: Assertion (A) :
The surface winds spiral inwards upon the centre of the cyclone.
Reason (R) :
Air descends in the centre of the cyclone.
(a) Both A and R are individually true and R is the correct explanation of A
(b) Both A and R are individually true but R is not a correct explanation of A
(c) A is true but R is false
(d) A is false but R is true
2: Which one of the following defines extremist ideology during the early phase of Indian freedom movement ?
(a) Stimulating the production of indigenous articles by giving them preference over imported commodities
(b) Obtaining self-government by aggressive means in place of petitions and constitutional ways
(c) Providing national education according to the requirements of the country
(d) Organising coups against the British empire through military revolt
3: The dimensions of a rectangle are 51 m and 49 m respectively while side of a square is 50 m. Which of the following statements is correct?
(a) Diagonals of the square and the rectangle are equal
(b) Diagonals of both the geometrical figures intersect at right angles
(c) The perimeters of both the geometrical figures are equal
(d) Both the geometrical figures are of the same area
4: The paintings of Abanindranath Tagore are classified as
(a) realistic
(b) socialistic
(c) revivalistic
(d) impressionistic
5: Which one of the following terms describes not only the physical space occupied by an organism, but also its functional role in the community of organisms?
(a) Ecotone
(b) Ecological niche
(c) Habitat
(d) Home range