Question # 1

Atomic number of th eelement of fourth position in second period.

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4

5

6

7

During reproduction, living things pass their characteristics to their.

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Parents

Grand parents

Off spring

Brother and sister

Bases react with acids to form water and........

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Hydrogen ions

Ammonia

Salt

Hydroxide ions

The three key ingredients used in making soap are.

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Oil, lye, water

NaOH , Oil, lye

Glycerol, oill, lye

glycerol, water, oil

Neurons carry messages in the form of.

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Electromagnetic waves

Electro chemicla waves

Transverse waves

Longitudinal waves

Consumers that actively hunt other organism are called.

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Prey

Competitor

Predator

Symbiont

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

Hubble telescope launched in space.

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1990

1991

1992

1993

The image formed by a convex mirror is.

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Real and upright

Real and inverted

Virtual and upright

Virtual and inverted

When same amount of force is applied on differente areas, it exerts.

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Low pressure on small area

No Pressure on small area

High pressur eon small area

High pressur eon large area

Na is symbol of.

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Neon

Nitrogen

Sodium

None of these

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