In the early 1950's dr jonas salk developed an effective vaccine for what childhood disease
a) polio
b)measles
c)chicken pox
d)typhoid fever

7. how did the early egyptians use the flooding of the nile river to their advantage? they diverted the water to flood their enemy's lands and destroy their crops. they created an easier way to travel to the mediterranean sea and the indian ocean. they established a new water-based athletic event for the ancient olympics in greece. they devised an innovative irrigation system, which created a surplus of food.

Where did the deafeted chinese nationalist flee to and form a new nation?

Which of the following is not a reason why the supreme courts power of judicial review is thought to be too powerful? a .no checks and balance in place to ensure that c. courts can change legislation throughmisuse is not occurring with judicial reviewopinionb. no judicial review can occur without presidential d .courts can create legislation through opinionconsent