Which of the following have the highest net-energy ratio? Select one:
O a.
solar energy
O b. natural gas
O c. petroleum
O d. coal

Which statement is true about the part of the electromagnetic spectrum that human eyes can detect? it contains only the colors of the rainbow and television waves. o it is divided into seven ranges of wavelengths. it contains ultraviolet, visible, and infrared light. it is divided into nine ranges of wavelengths.

An observation that requires measurement is called quantitative observable or qualitative

Select all of the methods through which a drug can enter your body. injection swallowing inhalation absorption