Question # 1

An element of the third period is the periodic table.

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Li

He

P

H

Half of the increase in atmospheric carbon dioxide concentrations in the last.............. years has occured since 1980

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100

200

300

400

Lactic Acid is found in.

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Grapes

Tomatoes

Ant's sring

Yogurt

Every bacterium of the colony contains a copy of gene of desired.

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Bacterial

Protein

DNA

Nucleus

All the food chains are joined together to form .....

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Food web

Ecologicla pyramid

Tropicla level

None of these

Humna brain in enclosed in a bony skull called.

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Medulla oblongata

Cerebellum

Cerebrum

Cranium

An electric current in a conductor is ude to the flow of.

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Positive ions

Negative ions

Positive charge

Free electrons

The rate of flow of charged is called.

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Volt

Ohm

Current

Coulomb

The approximate distance of the Sun from the centre of the milky way Galaxy is.

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24000 light years

22000 light years

21000 light years

25000 light years

A microphone converts mechanical wave energy into.

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Video signals

Ausio and video signals

Audio signals

None of these

The organisms upon whihc a redator feeds are called.

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Prey

Carnivores

Herbivores

Producers

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