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			What adaptations do mangrove trees have that help them to survive in a saline environment?
W – They have prop roots that provide support to them to grow on soft mud.
X – They excrete salt through glands in their leaves.
Y – They have roots that take in oxygen from the air.
Z – They have needle-like leaves to reduce water loss.
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W and X
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- X and Y
 
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- W, X and Y
 
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- X, Y and Z