Nullification was the idea that states could nullify, or void, what?

The map shows information about river valley civilizations. which feature of this map best the reader determine the distance between two places?

When using the scientific method, what should be the first step? a.) gathering information on the problem. b.) stating the problem. c.) analyzing and interpreting data.

Read this sentence from part 2: gandhi's model of resistance and reform was creative, appealing, and successful. what is the point of this sentence? gandhi created a new model for others. gandhi had a creative mind. gandhi had many supporters. gandhi's model was effective.