Question # 1

Bacteria move with the help of.

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DNA

Legs

Arm

Flagella

--------------- are fundamental particles of an atom.

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Electron

Proton

Neutron

All of these

Centigade scale is also called

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Fehrenheti scale

Fake scale

Absolute scale

Celsius scale

Strength of solution depends on the amount of.

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Solute

Solvent

Pressure

Temperature

Rusting of iron takes place in the presence of.

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Moisture

O2

Both moisture and O2

Dry air

There are ............ groups in periodic table.

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2

8

18

32

Example of solid in solid solution is.

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Air

Salt solution

Brass

Sea water

an example of non-contact force is

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Magnetic force

Crane lifting heavy object

Frictional force

A tug of war

Select all that happen during a chemicla change.

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A temporary chagne occurs.

Composition of the substanes is changed.

Propertis of the sbstances are changed.

New substances with different properties are formed.

Chlorophyll is present in.

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Mesophyll cells

Upper epidermis

Lower epidermis

Endodermis

Products of anaerobc respiration in yeasts are .......... along with energy.

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Carbon dioxide and water

Ethanol and carbon dioxide

Oxygen and water

Lactic acid and water

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