Which is not a common cause of soil mismanagement? a. crop rotation b. overgrazing by livestock c. cutting forests d. poor political decisions

The large increase in atmospheric carbon dioxide in the last 50 years most likely comes from a. an increase in cellular respiration b. increased decomposition by bacteria c. an increase in the burning of fossil fuels d. an increase in photosynthesis

What are the student's observations and inferences before he starts his investigation?

You are observing different types of cells in your science lab. one cell has many chloroplasts. what is the most likely function of this cell? a. energy production b. photosynthesis c. reproduction d. digestion