Which of the following is/are primary causes of water scarcity? Select one:
A. Excessive pumping of aquifer
B. Poverty
C. Poor water quality
D. All of the above

the relative standard reduction potential of the half-cell in which reduction occurs; more positive than the other half-cell. reduction is a chemical process in which electrons are added to an atom or an ion; it always occurs accompanied by oxidation of the reducing agent.

one part of the electromagnetic spectrum that arrives on earth as solar radiation from the sun is the visible spectrum. wavelengths of the visible spectrum combine to form what we refer to as

answer - d) ultraviolet radiation.

violet /   380–450 nm / 668–789 thz

violet is number 1 in the chart of visible light.

sound moves fastest in solids because the molecules are tightly packed and it allows sound to vibrate

answerhypothesis;