(Q).
Q: What is transmitted that makes up the electromagnetic spectrum? Choices: - gamma rays - light waves of different wavelengths - sound waves of different frequencies - electromagnetic radiation in different wavelengths A:
(A).
electromagnetic radiation in different wavelengths

(Q).
Q: What do we call water that has been used for cleaning, washing, flushing, or manufacturing? Choices: - Grey water - sewage - groundwater - wastewater A:
(A).
wastewater

(Q).
Q: What do we call the amount of time it will take for half of the radioactive material to decay? Choices: - one partial-life - one full-life - one quarter-life - one half-life A:
(A).
one half-life