Question

What is meant by the reference to the earth being an "isolated" planet?

All of the elements of the earth are retained.
The only thing entering and leaving the earth is energy.
The earth is losing mass (elements).
The earth is gaining mass (elements).

(multiple choice)

Answer 1

B

Step-by-step explanation:

the answer is B: The only thing entering and leaving the earth is energy.

Answer 2

The answer is B! “The only thing entering and leaving the earth in energy”