Answer:
I believe the answer you are looking for is the Lithosphere
It takes 27 days for the moon to orbit the earth
The correct answer is biological anthropology, or physical anthropology.
It is centered around human beings only, with respect to their common or different features that they either share or don't share with their related non-human primates and other ancestors. It deals with human evolution, the study of their behavior, reproduction, etc.
The mass would be 0.5kg
To find the mass of an object with acceleration and force would be
m = f/a
I hope this helps. Please rate Brainliest if it did :D