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Author Question: Choose an endangered or threatened animal or plant species, and use the Internet to research what is ... (Read 148 times)

mp14

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on: Jul 15, 2018
Choose an endangered or threatened animal or plant species, and use the Internet to research what is currently being done to preserve it. What dangers is your chosen species subject to?
 
  What will be an ideal response?

Question 2

What are the important characteristics of the troposphere? Of the stratosphere?
 
  What will be an ideal response?


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ngr69

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Reply #1 on: Jul 15, 2018
Answer to Question 1

Figure 6-17 gives some examples of endangered and threatened animal species. Answers will vary based on the species that each student chooses.

Answer to Question 2

The atmosphere is a collection of gases that gravity holds in a thin envelope around the Earth. The gases within the lowest layer, the troposphere, are responsible for moderating the flow of energy to Earth. The troposphere ranges in thickness from 10 miles in the tropics and 5 miles in high latitudes. . . . This layer contains practically all the water vapor and clouds in the atmosphere; it is the site and source of our weather. Above the tropopause is the stratosphere, a layer within which temperature increases with altitude, up to about 40 miles above the surface of Earth. The temperature increases primarily because the stratosphere contains ozone (O3), a form of oxygen that absorbs high-energy radiation emitted by the Sun. Because there is little vertical mixing of air masses in the stratosphere and no precipitation from it, substances that enter it can remain there for a long time.


mp14

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Reply 2 on: Jul 15, 2018
:D TYSM

dantucker

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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