Answer: D: Measure the amount of energy in the phytoplankton and the amount of light entering the aquarium. Then measure the amount of energy in the phytoplankton after exposure to the light and determine the difference.
Explanation: This will describe the law as the amount of energy leaving the system will be the same as measured before exposure to light.
Idk because we haven't done any
One way in which classification is used at school is the separation of different subjects and subject materials. For instance one day you may go to a math class, while another day you may go to a french class.
