Streams may start with runoff or water seeping out of a spring.
Sulfur occurs native in the vicinity of volcanoes and hot springs.
Streams may start with runoff or water seeping out of a body of water where sulfur occurs.
Streams may start with runoff seeping out of water containing what?
[a] chemicals
[b] Nutrients
[c] Nitrous oxide
[d] Helium
[e] Lithium
[f] Sulfur
[g] soil
[h] Sediment