The breaking down of rock by a physical process. Is caused by plant roots, ice wedging, changes in temperature and pressure, and abrasion.

Why is it important to reduce the number of chromosomes in half when forming gametes for sexual reproduction?

Which of the following is the best definition for the process of photosynthesis? a.) plants digest sugars to make energy. b.) plants use oxygen and glucose to make carbon dioxide. c.) plants use sunlight and carbon dioxide to make sugars. d.) plants use sunlight to make chlorophyll and chloroplasts.

What organ systems are working to you cool down after a workout?