Exit Quiz

Question 1 of 6
1 of 6
Starting with the first, order these statements to show how global warming is caused.
Click and drag answers to change the order, or select using Tab then move by pressing Space and the arrows on your keyboard.
Causes global warming.
Burning fossil fuels.
Increased greenhouse gases in atmosphere.
Enhanced greenhouse effect.
Consider which statement is the initial step: which one are humans doing to cause global warming?