Opening and closing of stomata is also regulated by ___...? Mcqs

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Opening and closing of stomata is also regulated by ___...?

(A) Epidermal cells
(B) Guard cells

(C) Root hair cells
(D) Mesophyll cells

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Which one of the following is Voluntary Muscle...?

(A) Biceps
(B) Cardiac

(C) Stomach
(D) Vessels

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Which planets in solar system are called gas giants...?

(A) Outer planets (Jupiter, Saturn and Uranus)
(B) Outer planets (Jupiter, Neptune and Uranus)

(C) Outer planets (Jupiter and Saturn)
(D) Inner planets (Mercury and Earth)

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For burning, which agent is necessary...?

(A) Oxygen
(B) Hydrogen

(C) Carbon
(D) Fire

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The location below the Earth's surface where the earthquake starts is called...?

(A) Epicenter
(B) Hypocenter

(C) Tectonic center
(D) All of these

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The weakest of all fundamental forces is the ________________...?

(A) Gravitational force
(B) Electrostatic force

(C) Magnetic force
(D) Nuclear force

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Plant stem that arise from buds on the base of parent plants are ______...?

(A) Bulb
(B) Rhizome

(C) Sucker
(D) Runner

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Who was the first to measure the earth’s circumference...?

(A) Eratosthenes
(B) Galileo

(C) Copenicus
(D) Ptolemy

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The toxicity of which of the following heavy metals leads to Liver cirrhosis...?

(A) Copper
(B) Lead

(C) Mercury
(D) Zinc

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The movement of materials/sugar from the leaves to other tissues of the plant is called...?

(A) Translocation
(B) Photosynthesis

(C) Respiration
(D) Transpiration

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