How can you tell when a solid substance dissolves in water and does not react?
A. Gas bubbles form in the water.
B. The substance starts to fizz in the water and gives off an odor.
O C. When the water evaporates, the substance is left behind.
O D. The water changes color and grows warm.

Explanation:

when the water evaporates the substance is left behind

you did not give any options thus this is the best answer i can give to you with this little information you have given

> they are both natural and not man made

> they can be tracked and predicted by the right tools

-love shrooms