(a)
Atmospheric
from human activity e.g.
burning adds small amounts of CO
and NO
x (x is 1 or 2)
from car exhausts and SO
2 . from burning coal.
(b) Human activity also adds
carbon dioxide from burning any
and particles of
to the atmosphere.
(c) Some pollutants cause
harm to humans e.g. nitrogen dioxide is a
s
(d) Sulfur dioxide or nitrogen dioxide cause
which causes
of metal or stone surfaces.
(e) These two gases also cause harm to the environment and
harm to humans by
lakes and rivers harming the natural progression of
.
