846: The Palk Bay lies between

(a) Gulf of Kachchh and Gulf of Khambhat

(b) Gulf of Mannar and Bay of Bengal

(c) Lakshadweep and Maldive Islands

(d) Andaman and Nicobar Islands
847: What does Baudhayan theorem (Baudltayan Sulva sutra) relate to ?

(a) Lengths of sides of a right-angled triangle

(b) Calculation of the value of pi

(c) Logarithm calculations

(d) Normal distribution curve
848: The river shown on the map is

(a) Irrawaddy
(b) Mekong
(c) Chao Phraya
(d) Salween
849: The national income of a country in a given period is equal to the

(a) total value of goods and services produced by the nationals

(b) sum of total consumption and investment expenditure

(c) sum of personal income of all individuals

(d) money value of final goods and services produced
850: Ogaden region has been a source of conflict between which countries?

(a) Angola and Zambia
(b) Morocco and Algeri
(c) Ethiopia and Somalia
(d) Nigeria and Cameroon