Light travels in a straight line because it doesn't usually interact with its medium. When it does it is called refraction.
Answer:
Enzymes help break down food that we consume. They are found in the stomach or small intestine.
Answer:
it's B I think I did this the other day tbh sorry if it's wrong btw hope this helps
Answer: A. vector
Explanation:
Movement is the change of position of a body at a certain time. The body that experiences this change of position is called mobile.
In this sense, the <u>displacement</u> is the distance in a straight line between the initial and final position of this mobile, which differentiates it from <u>the trajectory, </u> which is the <u>path followed by the body in its movement and a scalar magnitude.</u>
Hence, the displacement is a vector.
