Vector, in physics, a quantity that has both magnitude and direction. It is typically represented by an arrow whose direction is the same as that of the quantity and whose length is proportional to the quantityâs magnitude. Although a vector has magnitude and direction, it does not have position. That is, as long as its length is not changed, a vector is not altered if it is displaced parallel to itself. In contrast to vectors, ordinary quantities that have a magnitude but not a direction are called scalars. For example, displacement, velocity, and acceleration are vector quantities, while speed (the magnitude of velocity), time, and mass are scalars. To qualify as a vector, a quantity having magnitude and direction must also obey certain rules of combination.
Correct Answer: An explosive stratovolcano. Feedback: Good work Question 4 4 out of 4 points What are usually the most abundant gases emitted during basaltic volcanism (as measured during Hawaiian eruptions)? Selected Answer: Water and carbon dioxide Correct Answer: Water and carbon dioxide Feedback: Good work.
I did too! and if not for your question, I wouldnt have found out! So Nitrogen is the most abundant gas in our atmosphere. Then oxygen, then carbon dioxide, then other gases. We do inhale/intake mostly Nitrogen but we dont make any use of it so we just exhale it out. Source(s):