656: How many High Courts in India have jurisdiction over more than one State (Union Territories not included)?
(a) 2
(b) 3
(c) 4
(d) 5
657: Which of the following crops helps in nitrogen fixation?
(a) Rice
(b) Wheat
(c) Maize
(d) Beans
658: Assertion
Comets have gaseous tails
Reason
They are very hot bodies
(a) if A and R both are correct and R is the correct explanation of A
(b) if A and R both are correct but R is not the correct explanation of A
(c) if A is correct and R is incorrect
(d) if A is incorrect and R is correct
659: Recently, linking of which of the following rivers was undertaken?
(a) Cauvery and Tungabhadra
(b) Godavari and Krishna
(c) Mahanadi and Sone
(d) Narmada and Tapti
660: Which one of the following is paramagnetic in nature ?
(a) Iron
(b) Hydrogen
(c) Oxygen
(d) Nitrogen