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.​

desert perennials often survive by remaining dormant during dry periods of the year, then springing to life when water becomes available. most annual desert plants germinate only after heavy seasonal rain, then complete their reproductive cycle very quickly.

light dependent reactions:

light independent reactions:

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the "power" of a lens is its resolution power, or its ability to distinguish between to closely located points. with the low power lens, it is likely you will see the rough form of the hay and maybe some movement of dots around the hay. however, when observed with the high power lens, the detailed features of the hay become visible and the microbes being grown are more clearly visible.

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