When the earth was formed it had an atmosphere with
Hydrogen, Oxygen and Nitrogen
Water Vapour, Hydrogen and Oxygen
Oxygen, Carbondioxide and Nitrogen
Water Vapour, Ammonia and Methane
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- Damage to hearing is caused by sounds which exceed
- Hypogeal germination is found in
- Vitamin D is known as anti-rachitic vitamin because it cures the deficiency disease called
- Spontaneous generation signifying the development of living organisms from non-living has been termed
- Sadabahar, a common weed, is the raw material that provides the source of medicines used In the treatment…
- What is the other name for the brain?
- Which of the following diseases is not caused by a virus?
- The hormone which is Popularly called as stress hormone is
- Foal' is the young on of the
- The brain is covered by
- The plant hormone which promotes ripening of fruits is
- The development of new organs is termed
- The mode of nutrition in which particulate food is devoured is
- The blood without corpuscles is called
- Which one is a water-soluble vitamin?
- The best and easy method of control of crop pests is by
- The waste product In the urine of man is
- Human blood is oxygenated and purified in the
- Biologists have so far known, found and identified a large number of species in the plant and animal…
- Leafy trees help in preventing
- Which hormone is secreted when there is a rise in the blood glucose level?
- The blood pressure is controlled by the hormone
- Vitamin D deficiency leads to
- Man has ____ pairs of salivary glands.
- Compared to the veins, the walls of arteries are
- Rh+ blood is due to genes which are
- Which one of the following was probably absent in the atmosphere at the time of origin of life?
- The natural defence of our body against foreign germs is formed by
- The condition in which there is abnormal decrease of white blood corpuscles is known as
- The cavities of the brain are filled with