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List the short-term and long-term effects of forest destruction (a) on hillsides, (b) in the tropics.
(a) Deforestation on hillsides exposes the soil to erosion by rain and leads to silting of rivers and lakes. Floods may be caused by
(i) the rapid run off from deforested slopes, (ii) the silting up of rivers and lakes by the eroded topsoil.
(b) Deforestation in the tropics also leads to erosion. If followed by agriculture, it causes impoverishment of the soil. There might also be local climatic changes and a global enhance in atmospheric carbon dioxide. Biodiversity is reduced.
Induction of Defensive Barriers in Plants Several polymers deposited near surface of plants form an effective barrier against invasion or stress. Cuticle (which consists of a
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Find the electric potential, taking zero at infinity, at the upper right corner (the corner without a charge) of the rectangle in the figure. (Let y = 3.7 cm and x = 6.7 cm.)
Q. What respectively are zygotic gametic meiosis, meiosis and sporic meiosis? Zygotic meiosis is the one that occurs in the haplontic haplobiontic life cycle and Gametes from a
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General characters of aschelminthes
What information does the pain receptor relay to the brain about stimuli below threshold
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