Answer:
thylakoid membranes; stroma
<em>Hope</em><em> this</em><em> answer</em><em> correct</em><em> </em><em>:</em><em>)</em>
Google
Explanation:
Look up a picture on google there is your answer :D
The answer is 0.2
You subtract 8.05 - 7.85 = 0.2