Within the visible spectrum, red light has. a the shortest wavelength and the lowest frequency
b the longest wavelength and the lowest frequency
c the longest wavelength and the highest frequency
d the shortest wavelength and the highest frequency

B

Explanation:

It would be B. Think of frequency as the amount of humps in the waves. If it has less ups and down/longer spaces, it would have low frequency.  The wavelength of red is about 600-740.

economic impact of malaria is estimated to cost africa $12 billion every year. this figure factors in costs of health care, absenteeism, days lost in education, decreased productivity due to brain damage from cerebral malaria, and loss of investment and tourism.

imagine a line passing through the center of earth that goes through both the north pole and the south pole. this imaginary line is called an axis. earth spins around its axis, just as a top spins around its spindle. this spinning movement is called earth's rotation. at the same time that the earth spins on its axis, it also orbits, or revolves around the sun. this movement is called revolution.