Question # 1

Exothermic reaction ae those reactions durng which heat is.

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Given out

Remain same

Absorbed

Used

The basic particle of an element is called.

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Compound

Mixture

Atom

None of these

The colour of eyes in an organism is controlled by a.

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Egg

Zygote

Chromosomes

Gene pair

People on hills experience atomospheric pressure.

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More than that at the sea level

Less than that at the sea level

same as that at the sea level

Four times more than that at the se alevel

Symbol and formulae of the reactants are written on....... side fo arrow.

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Left

Right

Upward

Both side

When methane is burnt in air, CO2 and.......... are formed.

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O2

H2O

Glucose

Energy

The central nervous system is made of

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Spinal cord

Brain

All parts of body

Brain and spinal cord

The SI unit of pressur eis.

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Watt

Joule

Pascal

Newton

Mass number is number of.

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Protons

Neutrons

Both a and b

Electrons

The characters which are passed from parents to off spring.

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Environmental characters.

Naturla characters

Non -inheritable characters.

Hereditary characters.

Carbon cycle and ............. cycle are teh processes in whihc these minerals circulate between the organisms and the environment.

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Hydrogen

Iodine

Oxygen

Nitrogen

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