I think it could be
B
Or
D
<span>A combination of decreased homebuilding during the Depression and World War II coupled with the return of millions of veterans at the end of the war created the worst housing shortage in this country's history. Wilson Wyatt, the federal government's new Housing Expediter, estimated that 3 million houses needed to be built between 1946 and 1947. The demand for most of these homes was among low and middle income families. Many looked to prefabrication as a solution, believing that manufacturing and technical advances generated by the war would result in homes rolling off production lines by the million.</span>
The Kyoto Protocol. It
is a treaty where those who sign it vow to decrease greenhouse effect emissions
based on the evidence that there is global warming and that C02 emissions are
the source. It was signed by U.S.
President Bill Clinton but rejected later by President George W. Bush.
Plants create oxygen for one, they also support the most basic organism which supply other more complex creatures. Plants survive on solar energy and CO2 released by animals.
Plants (platae) have multiple cells and are multicellular while eubacteria include bacteria which are unicellular organisms. this is the easiest and most proper way.