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Read the following statements and choose the
P correct option.

W
(i) Light is essential for life to exist on the earth.
(ii) Many species of small plants under the canopy to tall trees in forest show optimal use of available light due to having large sized antenna molecules and higher number of thylakoids.
(iii) UV rays are not harmful to many organisms.
(iv) Photoperiodic requirement is essential for many plants for flowering.
(v) Red algae can live in deeper water of sea because of having pigment, phycoerythrin.
(1) (i) and (iii)
(2) (i), (iii) and (iv)
(3) only (iii)
(4) (i), (ii), (iv) and (v)
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