Question # 1

The blue colour of the clear sky is due to:

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Diffraction of light

Dispersion of light

Reflection of light

Refraction of light

Multiply:0.002 x 4.31, what will come?

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0.00862

0.862

0.0862

0.00762

The study of biology at a molecular level is called?

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Hematology

Taxonomy

Molecular Biology

Cryptography

What is the only element that burns with nitrogen:

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Fluorine

Titanium

Antimony

Manganese

The most commonly used bleaching agent is

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Sodium chloride

Carbon dioxide

Chlorine

Alcohol

The human heart best per minute at an average is?

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62

64

82

72

'Rh' factor is a term that we hear in connection with

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Space travel

Blood transfusion

Air pressure

Blood pressure

What instrument would we use to measure intensity of sound?

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Chronometer

Algesimeter

Audiometer

Barograph

The theory of use and disuse was used to explain evolution by

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Lamarck

Darwin

De Vries

Wallace

All the following are invertebrates except

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Sanil

Crab

Prawn

Fish

The element which is required by the plant in large quantity?

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Calcium

Sulphur

Phosphorus

Nitrogen

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