Which statement best summarizes the relationship between time and distance in echolocation and sonar? A. The closer the detected object, the slower the returning sound waves travel through a medium.

B. The farther away the detected object, the faster the returning sound waves travel through a medium.

C. The closer the detected object, the longer it takes the sound waves to return.

D. The farther away the detected object, the longer it takes the sound waves to return.​

For the strategies below, decide whether they are best described as demand-side solutions or supply-side solutions to meeting human needs for fresh water. remember that a demand-side solution reduces demand for fresh water, whereas a supply-side solution increases the supply of fresh water. (a) damming a river to create a reservoir (b) desalinating seawater (c) a nation invading a neighboring country to access their rivers (d) raising water prices for consumers and businesses (e) providing tax breaks for companies that use less water (f) replacing inefficient irrigation with more-efficient drip irrigation to grow crops (g) requiring low-flow showerheads in all new homes