Which student's observations would prove more useful to a chemist? David's observations
Luisa's observations

World class speed skaters can skate a 3,000-m course in about 4 minutes. what is their average speed for this course. a. 12.5m/s b. 1.33m/s c. 13.3m/s d. 1.25m/s

Water changes bacteria in the soil converts this nutrient into a usable form. plants take up the usable nutrient through the soil and assimilate it into proteins, making it part of the plant. an animal eats the plants, and the nutrient becomes part of the animal. when the animal dies, it decomposes, returning the nutrient back to the soil. which cycle is being described? water cycle carbon cycle nitrogen cycle phosphorous cycle

Laurels suv was detected exceeding the posted speed limit of 60 kilometers per hour how many kilometers per hour would she have been traveling over the limit if she had covered the distance of 10 kilometers in 5 minutes whats the speed distance and time