Increase the brightness of the light for the colors red, yellow, orange, and green. What effect did the brightness of the light have on the metal? (science)

How is the way a mixture is combined different from how a compound is combined?

Maya wrote if you step to describe how carbon circulates between the atmosphere and living organisms

Apound is approximately 0.45 kilogram. a persons weighs 87 kilograms. what is the persons’s weight, in pounds, when expressed to the correct number of significant figures