When John woke up in the morning, he saw a white trail left by a plane. He wonders why he is not seeing it every time when a plane flies by. Can you explain this phenomenon to John?

Which of the following best describes the reason the state department is interested in foreign exchange programs?

By the 1820s, many americans wanted to have an equal number of senators from the free states and the slave states. to achieve that, what would need to be true? sorry, the correct answer is: explanation review you answered: questions answered 11 time elapsed 00 17 08 hr min sec challenge stage 2 of 3 get 5 of 6 correct

Acase study allows a more detailed look at the life of a single subject than any other study