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Question:- Planets are A. luminous heavenly bodies revolving around a star B. non-luminous heavenly bodies C. luminous heavenly bodies that twinkle D. luminous heavenly bodies that do not twinkle
Answer:- Option B
Question:- One nanometer is equal to A. 10-6m B. 10-8m C. 10-9m D. 10-5m
Answer:- Option C
Question:- Mica is used in electrical appliances such as electric iron because mica is A. a good conductor of heat but a bad conductor of electricity B. a bad conductor of heat but a good conductor of electricity C. a good conductor of heat as well as electricity D. a bad conductor of heat as well as electricity
Answer:- Option A
Question:- It is easier to roll a barrel full of coal tar than to pull it because A. the full weight of the barrel comes into play when it is pulled B. the rolling friction is much less than the sliding friction C. more surface area of the barrel is in contact with the road when it is pulled D. coal tar is a liquid and it flows in the barrel when it is rolled
Answer:- Option B
Question:- Minimum number of unequal vectors which can give zero resultant are A. two B. three C. four D. more than four
Answer:- Option B
Question:- Intensity of sound has A. an object existence B. a subject existence C. no existence D. both subjective and objective existence
Answer:- Option A
Question:- Rain is falling vertically downwards. To a man running east-wards, the rain will appear to be coming from A. east B. west C. northeast D. southeast
Answer:- Option A
Question:- An aeroplane is flying horizontally with a velocity of 600 km/h and at a height of 1960 m. When it is vertically at a point A on the ground a bomb is released from it. The bomb strikes the ground at point B. The distance AB is A. 1200 m B. 0.33 km C. 3.33 km D. 33 km
Answer:- Option C
Question:- Ordinary table salt is sodium chloride. What is baking soda? A. Potassium chloride B. Potassium carbonate C. Potassium hydroxide D. Sodium bicarbonate
Answer:- Option D
Question:- Ozone hole refers to A. hole in ozone layer B. decrease in the ozone layer in troposphere C. decrease in thickness of ozone layer in stratosphere D. increase in the thickness of ozone layer in troposphere
Answer:- Option C
Question:- Pine, fir, spruce, cedar, larch and cypress are the famous timber-yielding plants of which several also occur widely in the hilly regions of India. All these belong to A. angiosperms B. gymnosperms C. monocotyledons D. dicotyledons
Answer:- Option B
Question:- Pollination is best defined as A. transfer of pollen from anther to stigma B. germination of pollen grains C. growth of pollen tube in ovule D. visiting flowers by insects
Answer:- Option A
Question:- Plants receive their nutrients mainly from A. chlorophyll B. atmosphere C. light D. soil
Answer:- Option D
Question:- Movement of cell against concentration gradient is called A. osmosis B. active transport C. diffusion D. passive transport
Answer:- Option B