681: What is the common feature in insects like ant and cockroach?
(a) They bite and chew their food
(b) They live in temperate climate conditions
(c) They have cutting and sucking type of mouth parts
(d) They are social insects
682: Consider the following statements
1. The winds which blow between 30 degree N and 60 degree S latitudes throughout the year are known as westerlies.
2. The moist air masses that cause winter rains in North-Western region of India are part of westerlies.
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
683: India is regarded as a country With "Demographic Dividend" This is due to
(a) Its high population in the age group of 15-64 years
(b) Its high population in the age group below 15 years
(c) Its high population in the age group above 65 years
(d) Its high total population
684: The following figure contains three squares with areas of 100, 16 and 49 lying side by side as shown. By how much should the area of the middle square be reduced in order that the total length PQ of the resulting three squares is 19?
(a) 12
(b) 4
(c) 2
(d) root 2
685: As per the Human Development Index given by UNDP, which one of the following sequences of South Asian countries is correct, in the order of higher to lower development?
(a) India--Sri Lanka--Pakistan--Maldives
(b) Maldives--Sri Lanka--India--Pakistan
(c) Sri Lanka--Maldives--India--Pakistan
(d) Maldives--India--Pakistan--Sri Lanka