How do you say in the South Carolina exposition and protest what characteristics of South Carolina are identified as a reason for the concern over tariffs? a.) they're reliance on foreign exports
b.) there reliance on slavery
c.) they're reliance on manufacturing
d.) they're reliant on agriculture

PLEASE HELP ME

What important discovery was made by edmond halley and alexis clairaut, using newton's ideas of mathematics and gravity? they created the scientific method to outline how science should be conducted. they were able to find the orbit of a comet and predict the year of its return. they discovered the three newest planets--uranus, neptune, and pluto. they explained why objects appear to have color.