A group of students used the instructions below to make a model of a watershed. When water washes over the water-soluble ink, th
e water will change color. Movement of water on the model can help identifyó A. groundwater pollution B. nonpoint source pollution C. changes in watershed size D. evaporation in the water cycle
The flow of energy in an ecosystem is bestdescribed as energy moving in one direction from the Sun to the producers<span>and then to the consumers.</span>
