2 ** Find the words in the text and match
them with the definitions.
1 recognise (v) a dangerously
2 migration (n) b by a very large amount
3 critically (adv) c a group of animals that
4 species (n)
are all similar
5 dramatically
d the plants grown by
(adv)
farmers
6 crops (n)
e know when you see
7 medicine (n) again
f the movement of
animals from one place
to another
g something that can stop
an illness

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