A "let serve" in volleyball means the ball hit the net on the serve and the server must re-serve without the ball hitting the net. True
Or
False​

Explain what you know about the cause of mental illnesses.

Andrew loves to go camping and hiking in the fall. about two weeks after his last camping trip, he noticed an expanding red, target shaped, rash on his arm. to avoid this illness, andrew should have select one: a. boiled his water before drinking. b. avoided contact with ticks. c. avoided contact with fleas found on mice. d. camped only in the spring.

In your own words write a brief paragraph about the importance of warning signs.