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THINKING CORNER :

Question 1:

Why does a coconut tree grow naturally on sea coast ?

Answer :

The coconut fruit is dispersed through sea water. The ripe fruit falls down and is transported by water to its new habitat, which will also be along the coast.

Question 2:

Why does a dog hang its tongue out of its mouth to cool down ?

Answer :

The tongue is coated with saliva, which is mostly water. The saliva evaporates and cools down the dog.