3411: Which of the following pairs is not correct?
(a) Seismograph : Earthquakes
(b) Anemometer : Speed of the wind
(c) Hygrometer : Water vapour content of the atmosphere
(d) Lactometer : Specific gravity of liquids
3412: Whose tomb among the following is not located in India?
(a) Akbar
(b) Humayun
(c) Jehangir
(d) Itmad-ud-daula
3413: Canola refers to special type of oil seed mustard varieties bred for human consumption. The main characteristic of these varieties is that the
(a) seeds have very high oil content
(b) oil is rich in unsaturated fatty acids
(c) oil has long shelf-life
(d) oil has very low Erucic acid content
3414: The messages received by and transmitted from the brain to the various parts of the body take the form of:
(a) Nervous impulses
(b) Chemical impulses
(c) Mechanical impulses
(d) Automatic impulses
3415: It is possible to produce seedless tomato fruits by
(a) applying trace elements in tomato fields
(b) spraying mineral solution on plants
(c) spraying hormones on flowers
(d) applying fertilizers containing radioactive elements