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Biology

Biology
Through Nitrogen fixation process nitrogen in the atmosphere is converted into

Nitrate
Hydroxide
Ammonium
Chlorite

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Biology
Function of heart in human body

To increase temperature
None of these
Work like pumping machines
To release energy

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Biology
The principle of dominance states that

Alleles are neither dominant nor recessive
Some alleles are dominant, while others are recessive
All alleles are recessive
All alleles are dominant

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Biology
Which among the following carries impure blood to human heart?

Pulmonary vein
Vena Cava
Aorta
Pulmonary arteries

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Biology
How many vertebrae found in human vertebral column

33
22
25
42

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Biology
Which one of the following is a rich source of iron?

Carrot
Spinach
Rice
Pea

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