1 A team of scientists prepares to study the flow of a river through a desert canyon for the next 10 years. The scientists think that the water is contributing to weathering and erosion of the canyon. What kind of data should the scientists collect as evidence to support their explanation?
A
Measure the water levels to see if less water can make the same changes in the canyon.
B
Record the measurements of distinct parts of the canyon to see if those areas change over the years.
C
Measure the temperature of the water to see if the water temperature becomes slightly warmer or cooler.
D
Take samples of the water that is flowing into the canyon. Test the samples in a lab to see whether the water and particles that make it up change over the allotted time.