OBJECTIVE LIFE SCIENCE
PLANT PHYSIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Air
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Water
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Soil
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None of the above
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Detailed explanation-1: -Liquid water is an essential requirement for life on Earth because it functions as a solvent. It is capable of dissolving substances and enabling key chemical reactions in animal, plant and microbial cells. Its chemical and physical properties allow it to dissolve more substances than most other liquids.
Detailed explanation-2: -Water is of major importance to all living things; in some organisms, up to 90% of their body weight comes from water. Up to 60% of the human adult body is water. According to Mitchell and others (1945), the brain and heart are composed of 73% water, and the lungs are about 83% water.
Detailed explanation-3: -Water helps your body: Keep a normal temperature. Lubricate and cushion joints. Protect your spinal cord and other sensitive tissues. Get rid of wastes through urination, perspiration, and bowel movements.