In Earth's climate system, positive feedback's tend to amplify changes in the system, and negative feedback's tend to encourage the system against change. Having a positive feedback gives the newest updates and brings the problems on the table, thus changes are always a must when there's proof that suggest there's big problem, but when the feedback is negative, lacking, then there's not pressure for changes, so anyone who has interest in not changing will push for that, thus encouragement of taking no changes. <span />
<em>A</em><em> </em>because of something that god knows
<em>B</em><em> </em><em>because of something that god knows</em>
<em>c</em><em> </em><em>because of something that god knows</em>
<em>D</em><em>because of something that god know</em>
Hello @D1fficult,
How are you doing? As of your question, "<span>What is the main cause of the differences in the physical characteristics of the Middle East and South America?"
Well, some differences that you would see is that, first of all, the Middle East is desert. The climate is dry, almost no rain, sandstorms, and heat. In the night, its cold, more water supply, however it still is dry. Their is mountains there, and almost no animals.
South America, you may know as the Amazon Forest. The Amazon Forest is everything but the Middle East. The climate is always wet, and its always raining. Lots of Vegetation, and animal variety.
I hope that you are able to see the difference, and I hope this helped you, if you need any more help, contact me!
Thank you,
Darian D.</span>