Lake Baikal is the
ge
B. larger
C. largest
Choose the correct word marked A, B, or C to fill each blank in the
sage.
AIR QUALITY
e need to breathe. If they don't breathe, they (1)_
he? If they breathe (2)_
die. But how clean is the a
air, they will have breathing problems and become (3)
air too. A lot of the things (5)____________ our lives creat
and (6)______ the air dirty, like cars, motorbikes and factories. Dirty air is called
air". Air pollution can also make our Earth warmer. The problem of air pollut
and animals need (4)_
coal in homes and factories.
e burning (8)
A. will
A. clean
A. well
A. clean
4. at
A. make
. pollute
. in
B. are
B. fresh
B. better
B. safe
B. in
B. get
B. polluted
B. for
C. must
C. dirty
C. ill
C. dirty
C. on
C. give
C. polluting
C. of
parrage and decide the statements are True or False.