Answer:
Greenhouse gases
Explanation:
Teddy is working for a nonprofit organization that urges people to stop using products with CFCs. Through this Initiative, Teddy's organization hopes to reduce the concentration of greenhouse gases in the atmosphere.
Greenhouse gases deplete the ozone layer thereby causing global warming as a result often increase in the intensity of Sun rays reaching the earth.
Example of greenhouse gases include chlorofluorocarbon, nitrogen, water vapor etc
Answer:
D
Explanation:
The G2/M check point makes sure that <u>all of the chromosomes have been replicated.</u>
- <em>Is all DNA replicated?</em>
- <em>Is all DNA damage repaired?</em>
Well it surely isn't nuclear, or electrical. It's not radiant either.. So the only answer is chemical.