Students want to determine the impact of soil erosion from the development of new housing. They plan to measure the density of a species of algae growing along the bottom of a river that flows through their town. The town is built in a heavily forested area, but a large area of trees along the river was recently clear-cut to allow for the construction of a new housing development, which has caused exposed soil to wash into the river. The river flows north to south through the town and is still forested both up- and downstream of the town. Which of the following would be the best control sample for the study?
a. A sample of water collected just downstream of the northern forest
b. A sample of water collected just downstream of the southern forest
c. A sample of distilled water
d. A sample of water collected just downstream of the housing development
Answers: 1
Geography, 23.06.2019 18:30
Scientists believe that differences in cause hot, plastic-like rock in the asthenosphere to rise toward earth's surface. a. density c. weight b. magnetism d. composition c. conduction. d. density.
Answers: 1
Geography, 25.06.2019 04:00
As stress on rock increases, the energy stored in it a.) decreases b.) melts c.) increases d.) disappears
Answers: 1
Geography, 25.06.2019 07:30
Stars and celestial bodies are a. cellestial bodies that emit light/ object that form part of the universe b. rock/ little planets c. bodies that emits/ galaxies
Answers: 1
Students want to determine the impact of soil erosion from the development of new housing. They plan...
Mathematics, 12.07.2019 11:00
Mathematics, 12.07.2019 11:00
Business, 12.07.2019 11:00
Chemistry, 12.07.2019 11:00
English, 12.07.2019 11:00
Biology, 12.07.2019 11:00
History, 12.07.2019 11:00
Mathematics, 12.07.2019 11:00
Chemistry, 12.07.2019 11:00
Health, 12.07.2019 11:00
History, 12.07.2019 11:00
Mathematics, 12.07.2019 11:00