4531: Which of the following crops is a tropical monsoon crop?
(a) Rice
(b) Wheat
(c) Ragi
(d) Jowar
4532: Assertion (A): The same face of the Moon is always presented to the Earth.
Reason (R): The Moon rotates about its own axis in 23 ½ days which is about the same time that it takes to orbit the Earth.
(a) Both A and R are individually true and R is the correct explanation of A.
(b) Both A and R are individually true but R is not the correct explanation of A
(c) A is true but R is false.
(d) A is false but R is true.
4533: Match List-I with List-II and select the correct answer using the code given below the lists :
List I
(Finding/Invention/ Calculation)
A. Time Taken by the Earth to orbit the Sun
B. Calculation of the value of (pi)
C. Invention of the digit zero
D. The game of snakes and ladders
List II
(Ancient Indian Scholar)
1. Aryabhatta
2. Bhaskaracharya
3. Budhayana
4. Gyandev
(A) 2 4 1 3
(B) 1 3 2 4
(C) 1 4 2 3
(D) 2 3 1 4
4534: The path of Halley's comet in its orbit around the sun is
(a) Parabolic
(b) Hyperbolic
(c) Elliptical
(d) Circular
4535: Man passed from the food gathering stage to the food producing stage in the:
(a) Neolithic Age
(b) Mesolithic Age
(c) Chalcolithic Age
(d) Palaeolithic Age