-1. what is a treehouse gas and how does it affect Earth’s climate? -2.why is it incorrect to assert that greenhouse gases prevent heat energy from

-1. what is a treehouse gas and how does it affect Earth’s climate?
-2.why is it incorrect to assert that greenhouse gases prevent heat energy from escaping to outer space?
-3.List three causes of climate change that result from plate tectonic processes.
-4.what is the role of continental glaciers in climate variation?
-5. what information about glacial cycles has been obtained by studying ice cores?
6- Give an example not discussed in this chapter of aa positive feedback and a negative feedback in the climate system.
7- Why are scientists reasonably sure that most of the twentieth century warming was due to changes in the climate system caused by human activities?