I think that carbon dioxide/pollution could be a massive change in the environment. You can find more information here
http://www.theworldcounts.com/stories/How-Pollution-Affects-the-Environment
A new moon
Definition of new moon:
the phase of the moon when it is in conjunction with the sun and invisible from earth, or shortly thereafter when it appears as a slender crescent.
Purebred dogs have more incidents of inherited diseases and higher heath issues because of there body frames and shapes like hip dysphasia in larger dog breeds, can also be due to inbreeding or unethical breeding profit.
The intertropical convergence zone is associated with the Earth and the equator. It is considered as a low pressure that circles the earth near the equator where the northern and southern trade winds com together. It also generates thunderstorms of sorts.
Allele frequencies will<span> not </span><span>change</span>