The three elements needed for healthy growth of plants are __________...? Mcqs

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The three elements needed for healthy growth of plants are __________...?

(A) N, P, K
(B) N, C, P

(C) N, K,
(D) N, S, P

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The respiratory problem common in smokers is______...?

(A) tuberculosis
(B) Emphysema

(C) Asthma
(D) Cancer

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The transfer of pollen grains from anther of a flower to the stigma of the same or another flower is called...?

(A) Fertilization
(B) Reproduction

(C) Pollination
(D) Photosynthesis

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What percentage of earth’s water supply is fresh water___________...?

(A) 3%
(B) 5%

(C) 21%
(D) None of these

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Energy possessed by water in a dam is ...?

(A) Electrical energy
(B) Mechanical energy

(C) Kinetic energy
(D) Potential energy

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Sound travels about ___________times faster in water than in air....?

(A) 2
(B) 3

(C) 4
(D) 5

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Which water will freeze first...?

(A) Hot
(B) Cold

(C) Both
(D) None

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Weather satellites are used for _____...?

(A) Provide weather forecasting
(B) TV signal broadcasting

(C) Telecommunication
(D) Space exploration

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The matter that sound travels through is called the...?

(A) Frequency
(B) Medium

(C) Amplitude
(D) Vibration

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Which lists the substances from least to most acidic...?

(A) Blood, milk, ammonia, orange juice
(B) Blood, ammonia, milk, orange juice

(C) Milk, blood, orange juice, ammonia
(D) Ammonia, blood, milk, orange juice

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