5. the earth's surface is approximately 71% water and 29% land. a. following the approach shown in class from the energy balance over land and oceans: an assessment based on direct observations and cmip5 climate models," estimate the fraction of the water vapor in the atmosphere (land +ocean) that originates from land surfaces vs oceans seas b. land surfaces receive on average 0.72 m of precipitation per year. estimate the fraction of the 0.72 m of precipitation on land that originates in the seas. can you think of any other hydrologic components that should be approximately equal to this estimate?

Student conducts an experiment to see how music affects plant growth. the student obtains four identical plants. each one is potted in the same type of soil and receives the same amount of sunlight and water each day. plant a listens to classical music for three hours each day. plant b listens to rock music for three hours each day. plant c listens to country music for three hours each day. plant d does not listen to any music at all.2.     based on the experiment in the scenario, which visual aid would be  in showing the change in the plants' heights over time?   a. a line graph  b. a timeline  c. a bar graph  d. a pie chart