In order for a waterfall to form in a stream cutting through a mountainous area, what must be true about the strata/rock underlying the top most layer of the waterfall?

The answer is c : ) hope this answered your question!

You should provide a picture to show where the arrow is pointing and which information that is given. but there are 3 branches of the government, legislative, executive, and judicial. legislative makes laws, executives pass laws, and judicial are the courts