Answer:
Biomagnification
Explanation:
DDT is one of the prime examples of a substance that biomagnifies. I would familiarize yourself with this topic. Hopefully this is a helpful starting point.
Answer:
Density is determined by an object's mass and volume.
Explanation:
If two objects take up the same volume, but one has more mass, then it also has a higher density.
The moon has approximately 1/4 of earths diameter, 1/50 of earths volume and 1/80 of earths mass
