<span>A. Color is not an observable phenomenon.</span><span>
B. It does not attempt to explain the natural world.</span><span>
C. The experimental group would be too large.</span><span>
D. How people experience color varies.
I think it would be B or D, you can analyze them both and I'm sure you'll come up with an answer ;)</span>
Convection Current
This happens when there is a noteworthy contrast in temperature between two sections of a liquid. At the point when this temperature distinction exists, hot liquids rise and cool liquids sink, and after that streams, or developments, are made in the liquid
Evaporate.
I hope this helped you!