391: With reference to the usefulness of the by-products of sugar industry, which of the following statements is/are correct?
1. Bagasse can be used as biomass fuel for the generation of energy.
2. Molasses can be used as one of the feed stocks for the production of synthetic chemical fertilizers.
3. Molasses can be used for the production of ethanol.
Select the correct answer using the codes given below.
(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
Explanation:
molasses itself is an organic fertilizer, so 2nd statement is wrong.
1 & 3 are true.
392: Which of the following is/are used as biofertilizers ?
I. Azolla
II. Blue-green algae
III. Alfalfa.
Select the correct answer using the codes given below.
Codes:
(a) II alone
(b) I and II
(c) I and III
(d) I, II and III
393: During cardiac failure, which of the following is advised as a first aid ?
(a) Mouth to mouth resuscitation
(b) Giving external cardiac massage
(c) Giving cool water to drink
(d) Giving complete body massage
394: Even though an animal is fed with carbohydrate-rich diet, its blood sugar concentration tends to remain constant. This is on account of the fact that in the case of an animal
(a) hormones of pituitary glands control metabolic process
(b) hormones of pancreas cause such a condition
(c) blood sugar is readily absorbed by liver
(d) glucose undergoes autolysis
395: In eye donation, which one of the following parts of donor's eye is utilised ?
(a) Iris
(b) Lens
(c) Cornea
(d) Retina
Explanation:
Though entire eye is removed from the donor (after death) only 'cornea' can be transplanted.