Answer:
The electromagnetic (EM) spectrum is the range of all types of EM radiation. ... The other types of EM radiation that make up the electromagnetic spectrum are microwaves, infrared light, ultraviolet light, X-rays and gamma-rays. You know more about the electromagnetic spectrum than you may think.
Explanation:
Answer: Solar rays from the sun that take 8 minutes to reach the earth
Answer:
Amount of food. She needs to varry the amount of plant food among the different groups so that she can tell how the amount of plant food affects number of beans produced.
The principal of falsifiability would be correct.
