6 Fill in the correct word derived from the words
in brackets.
Plants and flowers are not
only 1)
(beauty) they are also
... (use)
both to humans and
animals. Many 3) ........
(value) substances can
be 4) ................. (find) in
even the most common
plants. A chemical which
fights 5) .......
(cancer) growths is
derived from the yew plant, and 6) .......
(research) are doing 7) .................... (experiment) tests on
a 8) ............... (vary) of plants which may combat the AIDS
virus. Of course, plants do not only have 9) ..............
(medicine) uses. Apart from providing food, the
.... (produce) of oxygen is
another important role that plants play. For
this reason, it is vital that we protect
11)
.............. (danger)
species of plants and ensure the
12) .................... (survive) of our
forests and woodlands.​