66: Consider the following statements

1. The Executive Power of the Union of India is vested in the Prime Minister.
2. The Prime Minister is the ex officio Chairman of the Civil Services Board.

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
67: P, Q, R and S are four men. P is the oldest but not the poorest. R is the richest but not the oldest. Q is older than S but not than P or R. P is richer than Q but not than S. The four men can be ordered (descending) in respect of age and richness, respectively, as

(A) PQRS, RPSQ
(B) PRQS, RSQP
(C) PRSQ, RSPQ
(D) PRQS, RSPQ
68: The river shown on the map is

(a) Irrawaddy
(b) Mekong
(c) Chao Phraya
(d) Salween
69: The Millennium Ecosystem Assessment describes the following major categories of ecosystem services-provisioning, supporting, regulating, preserving and cultural. Which one of the following is supporting service?

(a) Production of food and water

(b) Control of climate and disease

(c) Nutrient cycling and crop pollination

(d) Maintenance of diversity
70: Through which one of the following Straits, does a tunnel connect the United Kingdom and France ?

(a) Strait of Gibraltar
(b) Denmark Strait
(c) Strait of Dover
(d) Davis Strait