1.polution causes proble,s becuase _______.
a.the soil, water and air can be poisoned.
b.natural resources can be used up
c.some things dont decompose so they add to the amount of trash.
d.all of the above.
e.none of the above
2.______ smog is more dangerouse than ______smog.
a.invisible,visible
b.visible,invisible
3.natural pollution includes all but which of the fallowing?
a.smog
b.valcanoes
c.falling leaves
d.valcanic eruptions
e.disease
ab. forest fires
ac.all of the above
ad.none of the above
4.problems with disposable items include all but which of the fallowing?
a.somethings do not decompes easily
b.plants cant grow on many diposable items
c. the amount of trash is greatly increased
d.all of the above
e.none of the above
which is not true for air pollution?
a.causes respiratory problems
b.reduces visibility
c.causes climate change
d.comes from burning trash and garbage
e.only causes problems locally
ab.all of the above
ac.none of the above
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