2996: Malaria fever is caused
(a) Immediately after mosquito bite
(b) Upon disintegration and bursting of red blood cells
(c) When the malaria causing germs reach the liver
(d) Upon release of toxins into blood
2997: Which of the following two continents are just like the mirror images of each other?
(a) South America and Africa
(b) South America and North America
(c) South America and Australia
(d) Europe and Asia
2998: Which one of the following animals was NOT represented on the seals and terracotta art of the Harappan culture ?
(a) Cow
(b) Elephant
(c) Rhinoceros
(d) Tiger
2999: Which of the following statements is true?
(a) Both salinity and density of sea increase with depth
(b) Both salinity and density of sea decrease with depth
(c) Salinity increases but density of sea decreases with depth
(d) Salinity decreases but density of sea increases with depth
3000: The Alpine vegetation in the western Himalayas is found only up to a height of 3000 metres, while in the eastern Himalayas it is found up to a height of 4000 metres,. The reason for this variation in the same mountain range is that
(a) eastern Himalayas are higher than western Himalayas
(b) eastern Himalayas are nearer to the Equator and sea coast than western Himalayas
(c) eastern Himalayas get more monsoon rainfall than the western Himalayas
(d) eastern Himalayan rocks are more fertile than the western Himalayan rocks