Question # 1

The average life span of RBCs is.

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110 days

115 days

118 days

120 days

The flat green part of leaf is called.

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Blade

Lamina

Both a and b

None of these

Is the application of scientific knowledge in daily life.

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Irrigation

Salt formation

Brine

Technology

Moon takes....... days to move once around the Earth.

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365

30

28

29

Which is not used in maing mango pickle.

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Mango slices

Table salt

Honey

Turmeric powder

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

The charge present on atom is

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Positive

Negative

Both a and b

Neutral

Value of "g" is taken on Earth is.

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1.6 N/kg

9 N/kg

10 N /kg

100 N /kg

An example of contact force.

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Electrostatic force

Muscular force

gravity

Magnetic force

The middle strong vein in leaf is called.

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Blade

Petiole

Midrib

None of these

A pigment in the skin that protcts harmful effects of sunlight.

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Haemoglobin

Melanin

Lysozyme

Lymphocyte

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