Answer:
It is traveling at 170 miles per hour.
Explanation:
divide 340 by 2 because right now it's at 340 miles per two hours.
You get 170 miles per hour.
It should be radio waves. If you need anymore help look up the wavelength chart online.
calcium,phosphorus,potassium,and sulfer
Answer:
the answer is B-2nd; stars
Explanation:
Answer:
are the best type of scientific investigation to demonstrate cause-and-effect relationships because they allow the investigator to actively manipulate variables and control conditions.
