if you took away the earth's natural greenhouse effect and everything else stayed the same, the earth's temperature would be
select one:
a. 10-20 degrees warmer
b. 30-40 degrees warmer
c. 10-20 degrees cooler
d. 50-60 degrees cooler

99 points which of the following selections is least useful for supporting the claim that states intentionally built unequal school systems to separate the races? question 1 options: a. the supreme court ruling in plessy v. ferguson (1896) declared segregation of schools to be unconstitutional. b. it was very clear by the mid-1900s that southern states had expertly built separate educational systems. these schools, however, were never equal. c. states with laws keeping schools segregated never gave equal amounts of money t o their black and white schools. d. ten years after brown, fewer than 10 percent of southern public schools had integrated. some areas did not comply at all.