If you could learn only one magic spell, but it could only do something mundane and boring, what would the spell do?

What is the mass of 4 molecules of co2

Mary is conducting an experiment on how pollution affects plant growth. how can she ensure that her data are reliable?

Which elements are found in glucose, the product of photosynthesis? a. carbon, hydrogen, and oxygen b. carbon and hydrogen c. carbon, nitrogen, and oxygen d. hydrogen, nitrogen, and carbon