B, the others are not testable under lab conditions.
Answer:
[The recent activities of fossil fuel combustion has had adverse effects on the ozone layer]- B.
B. form images of internal organs
Answer:
THIS IS YOUR ANSWER:
<em>Science</em><em> </em><em>is a study of nature human</em><em> </em><em>beings plants animals chemicals and machines</em><em> </em>
<em>and</em><em> </em><em>pHySiCs is a part of science</em><em> </em>
☺✍️<em>HOPE</em><em> </em>IT HELPS YOU ✍️☺
Either, carbon, hydrogen, nitrogen, oxygen, phosphorus, or sulfur. I would go with carbon because of the photosynthesis and cellular respiration<span />