Which of the following statements is true? a. x-rays have higher frequencies than microwaves. b. uv rays have higher frequencies than gamma rays. c. gamma rays have lower frequencies than microwaves d. infrared rays have lower frequencies than radio waves.

Two friends at different locations want to communicate with each other by sending low energy signals. which of the following methods can they use to communicate? a) produce x-rays using colliding electrons and send them to radios, which capture sound b) send messages using infrared radiation, which travel in the form of waves c) send radio waves through intervening media like radio and television d) produce sound waves using microwaves from heated objects

Joseph has hypothesized that sound travels in waves. if he were following the scientific method, what should he do next? a. ask a question. b. test the hypothesis. c. study the results. d. tell other scientists about his hypothesis.

If an area has high air pressure and low humidity, what type of weather will it most likely have? plz !