Between 1900 and 2000, the ozone (O3 ) levels in New York City went from 0.098 ppm to 0.086 ppm. What was the percent change in ozone levels?

What relationship exists between an enzyme and a catalyst?

An unknown insoluble substance displaced the water shown. it's mass is indicated on the triple beam balance. mass = a. 694 b. 693.5 c. 693.0 d.693.8

What is the importance of interlocking the fingers and rubbing while washing hands? the palms are the dirtiest parts of the hands. the spaces between the fingers get washed. the backs of the hands get washed. the fingernails are the dirtiest parts of the hands