What conclusion did the researchers from University of California San Diego reach regarding the best type of material to use for beach nourishment?(1 point)
Responses
A. Boulders should be placed near the water's edge to prevent the current from taking the new sand out to the ocean.
B. Sandy areas of a beach should alternate with cement areas to prevent erosion.
C. Sand mixed with soil should be used to promote plant growth and prevent erosion.
D. Large, coarse grains of sand should be used since they remain on the beach longer.
D. Large, coarse grains of sand should be used since they remain on the beach longer.
Which of the following is a positive impact of flooding on the environment?(1 point)
Responses
A. groundwater recharge
B. creation of new aquatic habitats
C. improvement in drinking water quality
D. expansion of floodplains
B. creation of new aquatic habitats
What is the primary goal of sustainable farming?(1 point)
Responses
A. developing new crops to grow while still growing traditional varieties
B. decreasing short-term costs and increasing long-term income
C. meeting current needs while preserving resources for the future
D. testing and adopting new technologies for agriculture
C. meeting current needs while preserving resources for the future
How do both jetties and seawalls help manage beach erosion?(1 point)
Responses
A. Both bring sand to the beach from offshore.
B. Both provide flood protection in the event of high waves.
C. Both use plants to help keep sand on the beach.
D. Both are hard structures that reduce erosion caused by waves.