We all agree that water is essential for life but does water predict that life is there?  What are they saying about water on our moon?  On Mars?

One Paragraph for each question, when doing post you can also ask question to further the discussion if you want to.

PLEASE LIST REFERENCES TO EACH QUESTION

Explain why when part of the rain forest is removed, the result is lack of rain. 

We all agree that water is essential for life but does water predict that life is there?  What are they saying about water on our moon?  On Mars?

How did the moon form?  

Class. How has the atmospheric components changed over the last 100 or so years.  Is there a noticeable difference in gases?

Class.  It is often stated that the air gets thinner at altitude, yet the composition of gases remains constant.  What then is responsible for the thin air that climbers experience?

Class:  Has the hydrosphere changed in the last 100 or so years. If so, How?

What is the difference between climate and weather?  IF it is cold in the east right now , does that have anything to do with climate change?

Class.  What greenhouse gas is in largest concentration in the atmosphere?  ( this might surprise you)