4.3 Climate and Greenhouse Gasses Flashcards
(8 cards)
1
Q
Do Greenhouse gasses raise or lower the temperature?
A
They raise it
2
Q
How have humans affected the climate?
A
We have released more CO₂ meaning more greenhouse gasses meaning a higher temperature.
3
Q
How do we use ice cores to find old climates?
A
We look at how large the sections are from each time period and what gasses and sediments are trapped inside.
4
Q
What is a positive feedback loop?
A
The feedback strengthens the cause of the loop.
5
Q
What is a negative feedback loop?
A
The feedback negates the cause.
6
Q
Is the water vapor loop positive or negative?
+Temp->+Evaporation->+Water Vapor->+Greenhouse Effect->+temp
A
Positive
7
Q
In the water vapor feedback loop, if you start with a certain temp that is higher then usual, will you end with a lower or higher temp?
A
A higher temp
8
Q
A
