Question # 1

Our electricity bill is taken in.

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Wh

kWh

micro Wh

m Wh

It is made up of interneurons.

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Spinal cord

PNS

CNS

Medulla oblongata.

------------- gas is released when dead organisms are decomposed by the decomposers.

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Oxygen

Carbon dioxide

Nitrogen

Hydrogen

Carbon dioxide is removed from the body through.

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Blood

Kidney

Lungs

Heart

As we go up in the air.

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Atmospheric pressure increases

Atmospheric pressur edecreases

Atmospheric pressur edoes not change

Atmosphericpressur ebecomes zero at the height of 1 km

Which factor is responsible for ecological imbalance.

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Over hunting

Change in water supply

Migration

All these

The colour of hottest star is

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Red

Yellow

Blue

White

During a chemical reaction, total mass of the product is equal to the total mass of reactants, this is a statements of.

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Law of conservation of momentum

Law of conservation of energy

Law of conseration of mass

Law of conseration of acceleration

The reaction between calcium oxide and carbon dioxide to form calcium carbonate is an example of.

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Decomposition reaction

Addition reaction

Acid-Base reaction

Neutralizaion reaction

To make bioplastic, we heat the solution.

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70 oC

75 oC

80 oC

85 oC

Which of the following type of mirror can form an image larger than the object.

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Plane

Convex

Concave

All of these

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