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
Asexual reproduction that produces a zygote
Electron shell is the outer orbital, while the inner orbital are just called orbitals.
The answer to your question is <span>B. Natural selection acted on the variation that was present in the population.
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