1651: Foot and mouth disease is prevalent among:
(a) Cattle only
(b) Cattle and pigs only
(c) Sheep and cattle only
(d) Cattle, goats, sheep and other hoofed animals
1652: Diamond Ring is a phenomenon observed
(a) at the start of a total solar eclipse
(b) at the end of a total solar eclipse
(c) only along the peripheral regions of the totality trial
(d) only in the central regions of the totality trial
1653: Assertion (A) :
When a ship moves from the sea water into fresh water of a river, the ship will relatively sink.
Reason (R) :
The density of sea water is higher than that of the fresh water.
(a) Both A and R are true and R is the correct explanation of A
(b) Both A and R are 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
1654: On the Moon, astronauts inflate a rubber balloon with hydrogen gas and release it at a height of 2 metres. The balloon will:
(a) Fall down
(b) Go upwards
(c) Remain at the height of 2 metres
(d) First go up and finally come down
1655: In many developing countries, three major causes of death and disease are
(a) lack of safe drinking water, increasing use of pesticides and thinning of the ozone layer
(b) contaminated food, global warming and industrial chloro-fluoro-carbons
(c) polluted air, greenhouse effect and soil erosion
(d) dirty water, contaminated food and polluted air