Write a hypothesis about the effect of mineral composition, acidity, temperature, and surface area on the rate of weathering using the “If…then…because…” format. Be sure to answer the lab question, “What factors influence the rate of weathering?”

The oxidizing agent our bodies use to obtain energy from food is oxygen (from the air). if you breathe 15 times a minute (at rest), taking in and exhaling 0.5 l of air with each breath, what volume of air do you breathe each day? air is 21% oxygen by volume. what volume of oxygen do you breathe each day?

Which of the following types of rock would most likely contain a fossil? slate granite lava rock limestone

Which of these is true for bacteria because they are prokaryotic cells? a. they can engulf body cells in order to make memory cells. b. they must invade viruses in order to reproduce. c. they are much larger than eukaryotic body cells. d. they can reproduce on their own outside of other cells.