Valence electrons, then, are electrons in the outermost shell of the atom that determine an atom's or group's ability to bond with others. In chemistry, a group refers to two or more atoms that are specifically arranged.
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Structure of the universe, telescope and microscope
The statement underlying mantle layer is molten where convection currents cause the movement of the lithospheric plates explains the movement of these lithospheric plates.
<h3>What is tectonic plate movement? </h3>
The theory discusses how Earth's surface is composed out of rigid slabs of <em>rock</em> that are known as plates. These <u>large pieces </u>of plates under the Earth's surface are regarded as the lithosphere.
Therefore, convection currents that appear in the mantle lead to movements in the plates due to the flow of current to heat up the mantle.
Learn more about tectonic plates here:
brainly.com/question/26826345
Answer:
b. dred scott vs sandford
Explanation:
The correct answer is letter b.
It happened in 1857, when Dred Scott, an enslaved black man, whose owners had taken him from a slave-holding state to a slave-free state and then brought back to the slave-holding state. With this, he argued that since he was taken into free territory, he was legally free by the Constitution. The US supreme court then ruled that the constitution was not valid to a black person :(
