Hi there!
Magma is the same as lava, but just inside of the volcano before it is spewed out. (Lava is when it is spewed out.) They are basically the same thing (just different terms to describe it.)
Hope this helps!
I think they are all biotic factors..hmm if not take out whichever sounds the most not fitting.
The branch of biology that deals with the relations of organisms to one another and to their physical surroundings.
