I believe sound is a form of energy
D. because it has no comma and theres multiple places where theres reasons for this is a run on sentence.
Thoreau has a possitive attitude toward the outdoors and believe that all people should return to nature as salvation for them. He believes that cities are bad for us.
5 balloons are blue
Explanation
Mark the brainest
This is an example of D. irony.
Irony is when you say something which is actually the opposite of what you think, in order to make a funny statement. So, this person said the doctor was unusually prompt (which means punctual, someone who always arrives on time), even though he was half an hour late. <span />