Which of the following does not contribute to the formation of the Mid- Atlantic Ridge?
A. Separation of plates at a divergent boundary
B. Volcanoes forming a chain of underwater mountains
C. One tectonic plate moving under another
D. Lava moving upward through the Earth's crust

Hey me with this one❤☺❤ how do you say that a cell also has a life span and death like an organism? give one example.

Johnny rode his bike to a friend's house 4 blocks down the street in his neighborhood. he immediately rode back home once he realized his friend was not able to play. what was his displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point

The greenhouse effect a. something that has occurred for millions of years b. an unnatural phenomenon caused by humans that maintains earths temperature range. c. the results of the differences in the angle of the suns rays d. an unnatural phenomenon that causes heat energy to be radiated back into the atmosphere