Physical geography is the study off of

Which sentence best represents the thesis of this article? a they challenge us to consider whether we can trust what we are seeing. b optical illusions may seem mysterious, but they are not unexplainable. c through science, we can learn how optical illusions work. d let’s take a look at three common optical illusions and explore the science behind each one.

Why are committees necessary in congress?

Explain at least three factors economists consider the measurement of success, or shortcomings, of the economy? and give examples.