121: Consider the following statements :
I. Tapeworm is a hermaphrodite.
II. Round-worm has separate sexes.
III. Filaria is caused by a nematode.
IV. Guinea-worm is an annelid.
Which of these are correct ?
(a) I and II
(b) I, II and III
(c) III and IV
(d) II, III and IV
122: The easiest way of finding out the nutritional status for large number of children in a short time is by:
(a) Studying their behaviour
(b) Studying their hair, face and eyes
(c) Measuring their height and weight
(d) All of the above
123: Indonesian forest fire in 1997 was caused by
(a) greenhouse effect
(b) depletion of ozone layer
(c) El Nino effect
(d) None of the above
124: Which of the following crops helps in nitrogen fixation?
(a) Rice
(b) Wheat
(c) Maize
(d) Beans
125: With reference to a grouping of countries known as BRICS, consider the following statements :
1. The First Summit of BRICS was held in Rio De Janeiro in 2009.
2. South Africa was the last to join the BRICS grouping.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2