Author Question: In an article in the New York Times,(75) A. Revkin pointed out that: In the early 1970s, when ... (Read 20 times)

Destiiny22 · **on:** Jul 28, 2018

In an article in the New York Times,(75) A. Revkin pointed out that: In the early 1970s, when scientists first reported that CFCs could destroy ozone, some theorized that the effect would be most discernible in the highest reaches of the

atmosphere over the tropics, partly because of the abundance of sunlight. What happened when the experiments were performed? Explain how the conditions mandated this experimental result.

Question 2

Carbon-15 and nitrogen-15 are isotopes of the same element.

What will be an ideal response?

Brenm · **Reply #1 on:** Jul 28, 2018

Answer to Question 1

Experiment showed that the effects occurred at the poles, not at the Equator. It
was at the very low temperatures that the ozone depletion occurred because of the chemical
reactivity there.

Answer to Question 2

Isotopes have the same number of protons, and therefore the same atomic identity.
Carbon and nitrogen are not the same atom.