Question # 1

The metal itself is not toxic, but most of its salt is are it has a melting point of 961,8C, is highly ductile and malleable, and is widely used to make jewellery and ornaments.

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Brass

Gold

Silver

Platinum

Which metal i non toxic in nature

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Chromium

Gold

Cadmium

Cobalt

Galileo's famous experiment at the learning tower of Pisa demonstrated what about gravity?

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accelerations independent of mass

Gravity is independent of other forces

Velocity is dependent on mass

What goes up must come down

Who discovered by first in 1697?

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lwanowsly

Leeuwenhoek

Louis pasteur

Robert Koch

Meteorology is the study of study of

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secret writing

Weather

Wood Engraving

History of life

Who made the first accurate estimate of the size of the Milky way galaxy?

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Fred Whipple

Edwin Hubble

Hariow Shapley

George Hale

Lens system used in a microscope-

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Convex

Concave

Concave & Convex

Plain lens

Why is phosphorus kept under water?

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to make it durable

To make it wet

to save it form catching fire when exposed dot dry air

water forms a protective coating on it

Who invented the rabies vaccine?

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Louis Pasteur

Charles Pravaz

Marie Curie

William Morton

Sexual selection theory was propounded by

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Wallace

De Vries

Lamarck

Charles Darwin

The reflection of a clock in a mirror shows time as 3:45. What is the actual time shown in clock?

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8:00

8:10

8:15

8:30

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