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a) In what ways do farmers try to improve the quality of (i) their soil, (ii) their crop plants?
b) What other steps do farmers take to maximise the yield from their crops?
A) (i) Soil quality is better by adding organic manure or compost and artificial fertilisers, by adding lime (to reduce acidity), by ploughing (to improve aeration and drainage), by draining (to reduce water logging).
(ii) Farmers try to select crop plants which have a high yield and which are resistant to diseases.
(B) Farmers irrigate their crops and try to eliminate weeds and pests.
Animal and Plant Cells The internal structural organisation and information related with hereditary characters and metabolic pathways are similar in all eucaryotic cells whethe
Q. What is the physiological cause of the syndrome Called as cretinism? Cretinism is caused by chronic deficiency of the thyroid hormones (T4and T3) during childhood. The chron
what is an ecosystem energy pathway
Conduction An action potential occurs at one point along the axon. Yet we know that neurological impulses are not fixed, they travel along a neuron. So how can the action pote
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Technique of food processing Freezing is another ancient technique of food processing, which allows the transportation of perishable food items for long distances from producti
It consists of: - Two kidneys that produce urine. - The left and right ureters that the urine travels through on leaving the kidneys. - The muscular urinary bladder, which
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(a) Bedroom : · Do not place room heaters near any inflammable materials. · Do not use heaters
what are the main coponents of human skeleton?
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