Explain seafloor spreading. Check all of the following that applies: occurs at boundary between the North American plate and the Eurasian plate
forming a raised mid-oceanic ridge.
The magma also spreads outward, forming new ocean floor and new oceanic crust made of basalt
As plates made of oceanic crust pull apart, a crack in the ocean floor appears.
Magma then oozes up from the mantle to fill in the space between the plates
created the Hawaiian Island chain
at a convergent boundary
O convection currents are falling in the mantle below this location.

Which of the following is the phase that results when the moon is on the opposite side of the earth from the sun? a. quarter moon b. crescent moon c. new moon d. full moon

Convection currents are caused by differences in what two things?

Researchers conducted an experiment to identify the effects of three different hand sanitizers on the growth of bacteria. the researchers grew one type of bacteria in twenty-four identical covered petri dishes. then, they opened eighteen petri dishes and applied the three hand sanitizers to six petri dishes each. they left the remaining six petri dishes closed as a control group. when the researchers measured the growth of bacteria two days later, the six dishes that had no hand sanitizer showed the least amount of bacterial growth. the researchers concluded that not using any hand sanitizer would lead to the least bacterial growth. which statement best explains why the researchers’ conclusion was not justified? the experiment tested too many variables. the control group was not treated the same as the experimental group. the sample size of twenty-four petri dishes is not large enough. the single type of bacteria is not adequate to make any conclusions.