6: In the context of genetic disorders, consider the following:
A woman suffers from colour blindness while her husband does not suffer from it. They have a son and a daughter. In this context, which one of the following statements is most probably correct?
(a) Both children suffer from colour blindness.
(b) Daughter suffers from colour blindness while son does not suffer from it.
(c) Both children do not suffer from colour blindness.
(d) Son suffers from colour blindness while daughter does not suffer from it.
7: The memory of a computer is commonly expressed in terms of Kilobytes or Megabytes. A byte is made up of
(a) eight binary digits
(b) eight decimal digits
(c) two binary digits
(d) two decimal digits
8: Which one of the following is used as an anti-freeze for the automobile engines?
(a) Propyl alcohol
(b) Ethanol
(c) Methanol
(d) Ethylene glycol
9: Consider the following programmes :
I. Afforestation and development of wastelands.
II. Reforestation and replantation in existing forests.
III. Encouraging the wood substitutes and supplying other types of fuel.
IV. Promotion of wide use of insecticides and pesticides to restrict the loss of forest area from degradation caused by pests and insects.
The National Forest Policy of 1988 includes
(a) I, II, III and IV
(b) II and IV
(c) I, III and IV
(d) I, II and III
10: What is the approximate mean velocity with which the Earth moves round the Sun in its orbit ?
(a) 20 km/s
(b) 30 km/s
(c) 40 km/s
(d) 50 km/s