Question # 1

Surface temperature of the Sun is

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3000 oC

6000 oC

15000 oC

1,500,000 oC

Speed of light through water is about.

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300000 km/s

250000 km/s

225000 km /s

200000 km/s

Metals have .......... melting and boiling point.

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Low

High

Very low

Normal

On the basis of their functions, neurons are of ............. type.

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Two

Three

Four

Five

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

In dilute HCl blue litmus turns.

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Orange

Yellow

Red

Pink

Star's distance are measured in

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Kilometeres

Miles

Light years

Nauticalmiles

What may be the objectiv eof genetic modifications of plants.

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Production of disease resistant plants

Improvement in nutritional quality of plants.

Production of herbicide resistant plants.

All of these

Before mitosis, sets of chromosomes are.

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Two

Three

Four

Five

Soap is............. salt of long chain fatty acid.

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Sodium or potassium

Magnesium

Iodine

Halogen

The additional circular places of DNA present in a bacterial cell are called.

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RNA

Nucleotides

Plasmids

Chromatids

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