Explain how Convection currents in the Earth’s mantle cause tectonic plates to move. Use the terms gravity and thermal energy in your answer.

Umm well ,The currents that cause the movement of the tectonic plates that make up the earth's crust as magma is a rock which is below the crust in the mantle and tremendous heat and pressure within the earth cause the hot magma to move in convection currentts.

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the word that best describes martin luther king jr.'s tone in the video is dignified

martin luther king, jr. was a social activist and baptist minister who played a key role in the american civil rights movement from the mid-1950s until his assassination in 1968. the video shows his manner and attitude having or showing a composed or serious manner that is worthy of respect so dignified is the correct answer

where are the vectors ?