21: Consider the following pairs: National Park River flowing through the Park

1. Corbett National Park : Ganga

2. Kaziranga National Park : Manas

3. Silent Valley National Park : Kaveri

Which of the above pairs is/are correctly matched?

(a) 1 and 2
(b) 1 and 3
(c) 3 only
(d) None
22: On a railway route between two places A and B, there are 10 stations on the way. If 4 new stations are to be added, how many types of new tickets will be required if each ticket is issued for a one way journey?

(A) 108
(B) 14
(C) 96
(D) 48
23: Consider the following statements:

1. Either of the two belts over the oceans at about 30 degree to 35 degree N and S Latitudes is known as Horse Latitude.

2. Horse latitudes are low pressure belts.

Which of the statements given above is/are correct?

(a) 1 only
(b) 2 only
(c) Neither 1 nor 2
(d) Both 1 and 2
24: Which one of the following pairs of metals constitutes the lightest metal and the heaviest metal, respectively?

(a) Lithium and mercury

(b) Lithium and osmium

(c) Aluminium and osmium

(d) Aluminium and mercury
25: In which organ of the human body are the lymphocyte cells formed?

(a) Liver

(b) Long bone

(c) Pancreas

(d) Spleen