Answer:
C. a disturbance that travels through a medium with a transfer of energy and without a transfer of matter
Explanation:
A wave is any disturbance that transfers energy from one location to the other via a substance called medium. It is important to note that a wave only conveys energy and not matter. For example, sound wave is a type of wave that carries sound energy from one place to another via mediums such as water, air etc.
Hence, according to this question, a wave can be described as a disturbance that travels through a medium with a transfer of energy and WITHOUT A TRANSFER OF MATTER.
Answer:
present
Explanation:
read doesn't change but write is in present tense
B.) A group of cells working together. If it were D.), the question would have had to be A cell is made up of...
Im not sure but it might be the last option: it gives reasons to be believed and trusted