Answer:
The number of valence electrons in an atom is reflected by its position in the periodic table of the elements (see the periodic table in the Figure below). Across each row, or period, of the periodic table, the number of valence electrons in groups 1–2 and 13–18 increases by one from one element to the next
I think it is C because photosynthesis converts solar energy
Answer:
<h3>THE CORRECT ANSWER IS</h3><h3>THE CIRCULATORY SYSTEM IS THE TRANSPORT SYSTEM FOR THE RESPIRATORY SYSTEM.</h3>
Dalton model :) Hope this helped.