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901. Three communicable diseases prevalent in developing countries caused by unsafe drinking water and bad sanitation are :
A. malaria, acute diarrhoea and schistosomiasis
B. reheumatism, malaria and AIDS
C. acute diarrhoea, cancer and gout
D. onchocerciasis, leukemia and arthritis
Explanation:
902. No two electrons in an atom can have the same set of four quantum numbers is
A. Bohrs law
B. Aufbau principle
C. Newtons law
D. Paulis exclusion principle
Explanation:
903. The phenomenon by which water molecules move from a water molecules move from a weaker solution to a stronger solution through a semi-permeable membrane is called :
A. Diffusion
B. Osmosis
C. Transpiration
D. Translocation
Explanation:
904. Two cars, passing each other at high speed, are in danger of side swiping because :
A. of the increase in air pressure in the space between them
B. of decrease in the velocity of air molecules between them
C. of decrease in air pressure in the space between them
D. increase in the velocity of air molecules between them
Explanation:
905. Consider the following worms :1. Filaria worm 2. Guinea worm3. Hookworm4. PinwormWhich of the above worms are nematodes ?
A. 1 and 2
B. 2, 3 and 4
C. 1, 3 and 4
D. 1, 2, 3 and 4
Explanation:
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