Is made up of weathered rocks and broken-down plant and animal materials.

Ascientist discovers a new body between the orbit of neptune and the kuiper belt. the object is round and travels in an orbit around neptune with other space objects. the scientist claims that she has found a new dwarf planet. where is the scientist’s error?

If you have a difficult time knowing where your hand is without looking at it you may be having a problem with your what ?

What are some characteristics of a free enterprise economy?