was a period of rapid colonization of the African continent by European powers. But it wouldn't have happened except for the particular economic, social, and military evolution Europe was going through.
<span>Radon may cause lung cancer when inhaled.
a: is formed by the breakdown of the ozone layer
b: may cause lung cancer when inhaled
c: binds with hemoglobin, preventing binding with oxygen
d: contributes to the breakdown of the ozone layer
e: in the atmosphere limits the availability of sunlight for plants</span>
