15 POINTS! Which of the following statements best describes the United States' involvement with Saudi Arabia's oil?

a) Saudi Arabia doesn’t sell its oil to the United States.
b) The United States tries to help stabilize oil prices.
c) The United States buys oil from Saudi Arabia to help stimulate Saudi Arabia’s economy.
d) The United States is not an ally of Saudi Arabia, so it doesn’t buy oil from them.

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.

In the spring of 1989, thousands of protesters gathered in tiananmen square in beijing, china. they rallied around a plaster statue that resembled the statue of liberty which they called “the goddess of democracy.” these protestors were seeking a) united states assistance in gaining better health care. b) economic reforms which would allow more chinese exports. c) the boycott of the future olympic games scheduled for beijing. d) political reforms to allow more freedom of speech and political representation.

What is the name of this mountain range found in northern africa?