Alex complains of chronic insomnia. He has had a medical check-up and is healthy, yet he has difficulty falling asleep. What is the best advice you can give in this situation?

Under the soviet system, the government a. controlled all forms of communication. b. allowed newspapers to print whatever they wanted. c. controlled editorials but not the reporting of news. d. encouraged access to a wide variety of news sources. select the best answer from the choices provided a b c d

Which zone within the open-ocean zone is home to the most organisms? deep zone surface zone intertidal zone transition zone

18. over time, how do sand dunes tend to migrate? a. perpendicular to the movement of the wind b. in the same direction as the wind blows c. toward the wind d. in random directions