Who was the most vocal opponent of the tariff of 1828 and advocated "state's rights" and "nullification" in the growing sectional conflicts between north and south?

In which country did miguel hidalgo led the revolution against spain?

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.

What notable contributions to science has sandia national labs (snl) produced over the years?