Which of the following gases do plants and trees give out during photosynthesis...? Mcqs

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Which of the following gases do plants and trees give out during photosynthesis...?

(A) Hydrogen
(B) Nitrogen

(C) Oxygen
(D) Carbon dioxide

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1 Meter = _________ millimeters...?

(A) 10000 millimeters (mm)
(B) 10 millimeters (mm)

(C) 100 millimeters (mm)
(D) 1000 millimeters (mm)

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Increase of the size (length, area and volume) of a body due to change in temperature is called _____...?

(A) Thermal Expansion
(B) Thermal Contraction

(C) Thermal Density
(D) Thermal Compression

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A fixed temperature at which a pure liquid boils is called ______...?

(A) Melting point
(B) Freezing point

(C) Boiling point
(D) Both 'a' and 'b'

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Heat is a form of...?

(A) Matter
(B) Work

(C) Radiation
(D) Energy

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The first cloned animal was____________...?

(A) Goat
(B) Cow

(C) Rat
(D) Sheep

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An antibiotic is a drug used to treat infections caused by ...?

(A) Protein
(B) Bacteria

(C) Virus
(D) All of these

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Name the drugs which block the sensory nerves and prevent the patient from feeling pain...?

(A) Analgesics
(B) Antibiotics

(C) Antihistamines
(D) Anaesthetics

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Water is a ______...?

(A) Polar solvent
(B) Non-polar solvent

(C) Amphiphatic solvent
(D) Non-polar charged solvent

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The process of vaporizing a solid substance and condensing the vapours to form the solid directly is known as...?

(A) Distillation
(B) Sublimation

(C) Filtration
(D) Crystallization

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