In plants, water and minerals are transported from roots to the leaves by ____...? Mcqs

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In plants, water and minerals are transported from roots to the leaves by ____...?

(A) Phloem
(B) Xylem

(C) Stomata
(D) Cambium

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Objects that gives out light of their own are said to be...?

(A) Luminous
(B) Non-luminous

(C) Reflective
(D) Illuminated

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Ascorbic Acid is found in ______...?

(A) Mangoes and Grapes
(B) Alma and Citrus Fruits

(C) Bananas and Apples
(D) Pineapples and Watermelon

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Which of the following cannot be polarized...?

(A) Radio waves
(B) Ultraviolet rays

(C) X-rays
(D) Ultrasonic waves

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The study of organisms and their environment is known as ________...?

(A) Acoustics
(B) Ecology

(C) Ichthyology
(D) None of these

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The distance between two successive crests or troughs of a wave is called ______...?

(A) Frequency
(B) Amplitude

(C) Velocity
(D) Wavelength

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The snow on the mountains does NOT melt all at once when it is heated by the sun because:...?

(A) it becomes very hard
(B) it reflects most of the heat from the sun

(C) it has a low specific heat capacity
(D) it has a high latent heat of fusion

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In the human body there are more than _____ known enzymes....?

(A) 800
(B) 1000

(C) 1200
(D) 1500

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A summary value calculated from population is called...?

(A) Parameter
(B) Sample

(C) Statistic
(D) Population

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If zero line of Vernier scale coincides with zero of main scale, then zero error is ______...?

(A) Positive
(B) Zero

(C) Negative
(D) One

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