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Force And Laws Of Motion
What factors may be responsible for losses of grains during storage?
Factors causing loss of grains during storage:
(i) Biotic Factors: These include insects, rodents, fungi and bacteria etc. These organisms eat the grains and lead to degradation in quantity, quality weight etc.
(ii) Abiotic Factors: These include the inappropriate moisture content and temperature which result in the loss of quantity and quality of grains.
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Under which of the following conditions is a person most likely to fall sick ?
(a) When she is recovering from malaria.
(b) When she has recovered from malaria and is taking care of someone suffering from chicken-pox.
(c) When she is on a four-day fast after recovering from malaria and is taking care of someone suffering from chicken-pox.
Why ?
Under which of the following conditions are you most likely to fall sick ?
(a) When you are taking examinations ?
(b) When you have travelled by bus and train for two days.
(c) When your friend is suffering from measles.
Why?
Why food is necessary?
What do you mean by health?
‘Public cleanliness is important for individual health’ comment.
Why good economic conditions and gibes are needed for individual health?
How can one be in poor health without actually suffering from a particular disease? Give an example.
Give two examples of how health of a person can depend on his environment.
What we commonly mean by community?
How does personal health relate to community health?
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