Question # 1

Electric current in a metal wire is due to due to the flow of:

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Protons

Electrons

Ions

None of these

bats can ascertain distance, directions, natural and size of the obstacles at night, This is possible by reflection of the emitted?

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Supersonic waves for distant object

Supersonic waves form the bat

Ultrasonic waves form distant objects

Ultrasonic waves form the bat

Who invented dynamite?

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William Ritter

Alfred Noble

Adolf von Bayer

Christopher

Which of the following disease has posted a serious threat the world over:

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Tumor

Paralytic stroke

AIDS

Tuberculosis

Which is NOT a sedimentary rock?

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Conglomerate

Obsidian

Shale

Sandstone

Who invented the telephone pager in 1949?

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Alexander Graham bell

Thomas A Edison

Al Gross

Marie Curie

Faraday is a unit of?

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Electric Charge

Brightness

Magnetic induction

Mass

Who was the first the measure earth's radius?

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Galileo

Copernicus

Ptolemy

Eratosthenes

Which of the following pairs has open type of circulatory system?

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Cockroach and Silverfish

Earthworm and Leech

Man and Whale

Tadpole larva and fish

A transformer mainly transforms

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Current

Voltage

Frequency

Power

Which of the following actions is related with evaporation of sweat?

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Exothermic action

Endothermic Action

Chemical action

Salty reaction

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