A location with luxuriant growth of lichens on the trees indicates that the (a) trees are very healthy (b) trees are heavily infested (c) location is highly polluted (d) location is not polluted.

A location with luxuriant growth of lichens on the
trees indicates that the
(a) trees are very healthy
(b) trees are heavily infested
(c) location is highly polluted
(d) location is not polluted.
by

1 Answer

Answer :

d) location is not polluted.
by

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