Question # 1

Irigation has methods.

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One

Two

Three

Four

The central part of an atom is called.

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Electron

Proton

Neutron

Nucleus

The loss of water from aerial parts of the plants.

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Respiration

Photosynthesis

Evaporation

Transpiraton

A batsman hits the ball back towards the bowler, which effect of force is seen.

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change of shape

Change of direction

Change of stae from motion to rest

Change of state form rest to motion.

The wavelength of red colour is.

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700 nm

800 nm

900 nm

600 nm

In .... elements are arranged in order of increasing atomic numbers.

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Group

Period

Orbit

Shell

Valency of nitrogen is

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1

2

3

4

Example of solid in solid solution is.

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Air

Salt solution

Brass

Sea water

Whcih of the following has double covalent bound.

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Br2

CO2

HCl

N2

The force between two negatively charged particles is.

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Gravitational

Frictional

Repulsion

Attraction

Which blood vessesl have valves in it.

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Capillaries

Artery

Vein

Arteriole

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