The greenhouse effect
a.
is essential for life on earth
b.
warms earth’s atmosphere
c.
is a natural phenomenon
d.
all of the above

Examine these two paintings that depict famous events from american history. the image on the left, painted in 1940, shows the signing of the u.s. constitution in 1787. the image on the right, painted in 1836, shows the american victory at the battle of yorktown in 1781.which of these paintings should be considered a secondary source?

Interest groups are protected by the first amendment guarantees of petition and what other freedom?

Select the correct answer. what was one of the immediate consequences of the partition of india? a. the creation of bangladesh b. political and religious stability c. riots between hindus and muslims d. the formation of a strong democracy e. the establishment of a military government