1.A pond of water appears less deep due to
2.Newton’s 1st law of motion gives the concept of
3.‘Therm’ is the unit of
4.Which of the following organisms is most likely to produce greenhouse gases such as nitrous oxide and methane?
(d) Green plants
5.The sensation of weightlessness in a spacecraft in an orbit is due to the
(a) absence of gravity outside
(b) acceleration in the orbit which is equal to the acceleration due to gravity outside
(c) presence of gravity outside but not inside the spacecraft
(d) fact that spacecraft in the orbit has no energy
6.Which mixture of gases is mainly stored as a liquid under pressure in LPG cylinder?
(a) Methane and Ethane
(b) Ethane and Hexane
(c) Propane and Butane
(d) Hexane and Octane
7.Which gas is used as fire extinguisher?
(a) Carbon dioxide
(b) Carbon monoxide
(c) Carbon suboixde
(d) Sulphur dioxide
8.The only age of India found in hill forests of Assam and Nagaland is
9.Which one of the following is related to Silviculture?
(a) Culture of Hilsa
(b) Culture of silver carp
(c) Culture of oil-producing plants
(d) Forests crops
10.Which one of the following does not secrete any digestive enzyme?
(b) Salivery gland
(c) Glands of small intestine
11.Which of the following creatures has maximum number of ribs?
(c) Ray fish
(d) Flying mammal
12.Which one of the following is not a plantation crop?
13.In our Constitution, Economic Planning is included in
(a) Union list
(b) State list
(c) Concurrent list
(d) Not any specified list
14.The authority which is not established by the constitutional provisions is
(a) Finance Commission
(b) Planning Commission
(d) Election Commission
15.A parachute descends slowly whereas a stone dropped from the same height falls rapidly, because
(a) stone is heavier then parachute
(b) special mechanisms are present in parachute
(c) a parachute has a larger surface area and air resistance is more
(d) None of these