If plants were removed from an area, which of the following would happen? (Highlight the correct answer) 1). Oxygen levels would increase
2). Carbon Dioxide levels would increase
3). Carbon Dioxide levels would decrease
4). None of the above

You are working in the lab and are working with the same element but with varying isotopes of the element. you are working with c-11, c-13, c-14, and c-15. what is the average atomic mass of this element? (use periodic table) a- 12 b-15 c-14 d-13