What happens when a sound wave moves from water to air?

it slows down.
it speeds up.
it stays the same.
it reverses.

when two mechanical waves have a displacement in opposite directions, and they overlap, what will the resulting wave look like and why?

the new wave will have the same displacement as the original waves due to constructive interference.
the new wave will have a smaller displacement than either of the original waves due to destructive interference.
the new wave will have a greater displacement than either of the original waves due to constructive interference.
the new wave will have the same displacement as the original waves due to destructive interference.

The hypothesis of continental drift states that earth's continents, which are located on tectonic plates, move relative to each other. which of the following is true of the movement of the tectonic plates? a. tectonic plates only move once every million years. b. they move at a rate of approximately 5 centimeters per year. c. tectonic plates never move, only the continents located on them do. d. their movements are very rapid and occur at random times.

Complete the sentences by matching the names of trees to the appropriate blanks. to do this, drag the names on the left into the appropriate blanks in the sentences on the right. match the words in the left column to the appropriate blanks in the sentences on the right. terms may be used more than once. make certain you have filled every blank with a term before clicking submit. 1. deciduous trees lose their leaves seasonally and include trees such as maple and elm. 2. conifer leaves are generally thin and needle-like, while seeds are contained in cones. conifers include cedar and pine. 3. evergreens are plants that maintain their leaves in all seasons and include trees such as cedar, elm, and pine. 4. hardwoods reproduce using flowers and have broad leaves; hardwoods include trees such as maple, , and cedar. elm returned you filled in 2 of 10 blanks incorrectly. mango trees are tropical broad leaf plants that maintain their leaves all year long. no credit lost. try again.

What is the role of the phospholipid belayer in cellular transport in living cells