Problem 1: Draw a diagram of the water cycle, being sure to label condensation, precipitation, percolation, evaporation, and transpiration. Put a star next to each of the two processes that bring water from Earth's surface to the atmosphere.
Problem 2: Draw a diagram of the fast carbon cycle and another diagram of the slow carbon cycle.
Problem 3: Draw a diagram of the nitrogen cycle. Be sure to label fixation, nitrification, denitrification, ammonification, and assimilation. Put a star next to each of the three places where bacteria are involved.
Problem 4: Draw a diagram of the phosphorus cycle.
Problem 5: Explain how the lithosphere, hydrosphere, and atmosphere individually and collectively affect the biosphere.