Which of the following statements about mangrove species are correct?
1. Red mangroves are identified by their prop roots, which are reddish and aerial.
2. Black mangroves are identified by finger-like projections called pneumatophores.
3. White mangroves have visible aerial roots like red and black mangroves.

Select the correct answer from the code given below:
(a) 1 and 2 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3

Question

Which of the following statements about mangrove species are correct?
1. Red mangroves are identified by their prop roots, which are reddish and aerial.
2. Black mangroves are identified by finger-like projections called pneumatophores.
3. White mangroves have visible aerial roots like red and black mangroves.

Select the correct answer from the code given below:
(a) 1 and 2 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3

ONLiNE UPSC · Accepted Answer

Statement 1 is correct: Red mangroves are easily identified by their "prop roots," which are tangled, reddish, aerial roots originating from the trunk and branches. This characteristic makes red mangroves distinguishable from other mangrove species.

Statement 2 is correct: Black mangroves can be identified by numerous finger-like projections called pneumatophores, which protrude from the soil around the tree's trunk. This adaptation helps black mangroves obtain oxygen in the waterlogged, low-oxygen soil they inhabit.

Statement 3 is not correct: White mangroves do not have visible aerial roots like red and black mangroves. They can be identified by their elliptical, yellowish leaves and the two distinguishing glands at the base of each leaf blade, not by aerial roots.

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M Question 1	⏱ 0
Which of the following statements about mangrove species are correct? 1. Red mangroves are identified by their prop roots, which are reddish and aerial. 2. Black mangroves are identified by finger-like projections called pneumatophores. 3. White mangroves have visible aerial roots like red and black mangroves. Select the correct answer from the code given below: (a) 1 and 2 only (b) 2 and 3 only (c) 1 and 3 only (d) 1, 2 and 3