181: Which of the following is the chief characteristic of 'mixed farming'?
(a) Cultivation of both cash crops and food crops
(b) Cultivation of two or more crops in the same field
(c) Rearing of animals and cultivation of crops together
(d) None of the above
182: Assertion (A):
Unsaturated fats are more reactive compared with the saturated fats.
Reason (R):
Unsaturated fats have only single bonds in their structure.
(a) Both A and R are individually true and R is the correct explanation of A
(b) Both A and R are individually true but R is NOT the correct explanation of A
(c) A is true but R is false
(d) A is false but R is true
183: Consider the following chemicals :
1. Benzene
2. Carbon tetrachloride
3. Sodium Carbonate
4. Trichloroethylene
Which of the above is/are used as dry cleaning chemicals ?
(a) 1 Only
(b) 2 Only
(c) 1, 2 and 4 Only
(d) 1, 2, 3 and 4
184: Tourism industry in India is quite small compared to many other countries in terms of India's potential and size. Which one of the following statements is correct in this regard ?
(a) Distances in India are too far apart and its luxury hotels are too expensive for western tourists
(b) For most of the months India is too hot for western tourists to feel comfortable
(c) Most of the picturesque resorts in India such as in the North-East and Kashmir are, for all practical purposes, out of bounds
(d) In India, the infrastructure required for attracting tourists is inadequate
185: Consider the following statements:
1. Non-function of lachrymal gland is an important symptom of deficiency of Vitamin A.
2. Deficiency of Vitamin B1 can lead to indigestion and heart enlargement.
3. Vitamin C deficiency can lead to pain in the muscles.
4. Deficiency of Vitamin D causes increased loss of Ca++ in urine.
Which of the statements given above are correct?
(a) 1 and 2
(b) 2, 3 and 4
(c) 1, 3 and 4
(d) 1, 2, 3 and 4