Question

PLS HELP!

Which of the following is an example of an essential question?

A. What percent of the Earth’s surface is made of water?
B. What are the key features of the planet Mars?
C. Do dolphins communicate with people?
D. What does it mean to be successful?

Answer 1

It would either be a. or d.

Step-by-step explanation:

let me know if im wrong

Answer 2

B?

Step-by-step explanation: