Which of the following would a chemist be most likely to study ?
a leaf floating on water
a leaf changing color in autumn
a leaf being blown by the wind
a leaf being eaten by insects

a leaf changing color in autumn

Explanation:

The chemist is a professional who has the knowledge of chemical science. The chemist studies about the chemical changes occurring in nature by experimental analysis.

The change in color of reaction can be indicative of a chemical reaction occurring in the leaf. Thus a chemist should study the change in color of the leaf.

not clear

in the analysis of systems that involve fluid flow, we frequently encounter the combination of properties u and pv.