Question 4 of 10 Which two options are reasons that electromagnetic waves are effective for
use in communication devices?
A. The entire electromagnetic spectrum can be used.
B. They can travel through matter and through space.
C. Both gamma rays and X-rays can be used.
D. They can carry information for long distances without wires.

Apositive charge moves in the direction of an electric field. which of the following statements are true? check all that apply. check all that apply. 1.the potential energy associated with the charge decreases. 2. the electric field does positive work on the charge. 3. the electric field does negative work on the charge. 4. the potential energy associated with the charge increases. 5. the electric field does not do any work on the charge. 6. the amount of work done on the charge cannot be determined without additional information.

When solid surfaces slide over each other the kind of friction that occurs is called friction

Does science support the idea that humans have influenced global warming? provide specific examples that show how two knowledgeable individuals with differing opinions might argue.