626: 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
627: The original inhabitants of India are believed to be of the ethnic type known as
(a) Negrito
(b) Proto-Australoids
(c) Mongoloids
(d) Dravidians
628: Banaras Hindu University was founded by:
(a) Dadabhai Naoroji
(b) Gopalakrishna Gokhale
(c) Pandit Madan Mohan Malaviya
(d) Bal Gangadhar Tilak
629: Amoebiasis, malaria and typhoid are diseases due to amoeba, malarial parasites and typhoid bacillus which are collectively called:
(a) Anthropods
(b) Protozoa
(c) Mollusca
(d) Pisces
630: Which of the following statements regarding laterite soils of India are correct?
1. They are generally red is colour.
2. They are rich in nitrogen and potash.
3. They are well developed is Rajasthan and UP.
4. Tapioca and cashew nuts grow well on these soils
Select the correct answer using the codes given below.
(a) 1 and 4
(b) 2 and 3 only
(c) 1, 2 and 3
(d) 2, 3 and 4