Question # 1

The part of atmosphere where all living bodies reside is................ thick.

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4 to 10 km

6 to 18 km

8 to 20 km

10 to 20 km

In Brazil, most of the vehicles run with:

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petrol

Bio gas

Alcohol

CNG

The practically unit of electricity is;

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kilowatt hour

watt

Joule

Ampere

We can save eenrgy.

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1- By increaisng personal vehicles.

2- By making vehicles of beavier bodies.

3- By not walking

4- By avoiding unnecessary of energy.

Excessive growth in population is also one reason of enhancement in.

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Pollution

Radiations

Conduction

None of them

The Si unit of power is;

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Joule

Ohm

Watt

Ampere

One kilowatt-hour is the amount of energy that is consumed by a ........ applicance in one hour.

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1000 watt

100 watt

10000 watt

500 watt

The energy of moving charges is called:

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Light energy

Heat energy

Chemical energy

Electrical energy

Themethod of production of electricity that does not produce pollution is.

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Hydroelectirc power

Thermal power

Nuclear power

Burning of biogas

Breaking of the heavy nucleus of an atom is called:

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Nuclear fission

Nuclear fusion

conservation

pollution

The production of electricity from tides of water is called:

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Wind power

Thermal power

Tidal power

Nuclear power

Natural gas is measured in:

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square meter

cubic meters

Btu

B and C both

Cause of air pollution is.

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Carbon Monoxide

Sulphur di oxide

Nitrogen oxide

All of them

The energy due to motion is called.

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Potential energy

Kinetic energy

Nuclear energy

Chemical energy

The solar energy falling on the atmosphere of Earth is almost:

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1.2 Kilowatt per square meter

1.4 kilowatt per square meter

1.6 kilowatt per square meter

1.8 kilowatt per square meter

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