Earth was not always divided into the continents as we see them today. Landmasses have divided and changed shape due to the movement of Earth’s tectonic plates. Which of the following is NOT a result of plate tectonics? A. Volcanic activity
B. Earthquakes and shifting
C. Change in the size of ocean
D. Convection curents in mantle

Which of these statements best describes the st. lawrence seaway? the st. lawrence seaway connects the st. lawrence river with the arctic ocean. the st. lawrence seaway provides an important trading route between the u.s. and mexico. the st. lawrence seaway provides an important trading route for the u.s, but has little value for canada. the st. lawrence seaway connects the great lakes, the st. lawrence river, and the atlantic ocean.

The diagram illustrates the activity of vesicles during a cellular process.

Look at the following answer choices and determine which belongs in the both category. testable, can be disproven explains natural phenomena, has evidence to support it prediction, tentative, one or more scientists working together well established, many different scientists working independently, highly reliable