Question

what are the role of metals and non metals in 
a. plants
b. animals

Answer 1

Metals and non metals play a very important role in animal and plant life.
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1.In our body , Iron is present in the pigments of red blood cells called ' haemoglobin'
2. If there is deficiency of iron, then there will be less haemoglobin in our blood which leads to weakness and tiredness.
3. Oxygen is non metal which is used by plants and animals for breathing
4.Nitrogen is non metal which is used in making fertilizers to enhance the growth of plants.
5. CO2 gas is used for photosynthesis in plants and animals exhale CO2.

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