Which of the following gases is the most abundant in a volcanic eruption?
a. carbon dioxide

b. carbon monoxide

c. sulfur dioxide

d. hydrogen sulfide

e. hydrogen
: (

Schrodinger and heisenberg developed an alternate theory about atomic nature that contradicted some of bohr's model of the atom. how do changes resulting from new technology and evidence affect the reputation of the atomic theory?

All of the following are part of the biosphere except

What causes most sediment to wash or fall into a river