Lodine solution, Copper sulphate. 9.(a) Which Vitamin helps in absorbing calcium mineral present in the diet
into our body? (b) Name the mineral whose deficiency causes anaemia.
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10.(a) Explain the structure of a leaf.

answer; ///progressive relaxation;

the species living around the vents are especially good at dispersal.  

deep-sea vent originates on the floor of the ocean when seawater circulates through hot volcanic rocks, usually situated where the new oceanic crust is being produced.  

biological dispersal refers to the movement of species from their location of birth to their site of breeding, or from breeding site to another. similarly, the oceanic dispersal refers to the movement of the species from one land mass to another by sea crossing.