Tion 3 4 5
6
Which of the following is a correct statement?
The form of carbon found in the atmosphere is call
O
O Life as we know it could exist on Earth without carb
O
The carbon cycle is not essential to the biosphere.
O The greenhouse effect is not related to carbon in th

Draw the farm's ppf for corn and beef. draw a point that shows an inefficient combination of corn and beef. label ita. draw a point that shows an unattainable combination of corn and beef. label itb. draw a point that shows an efficient combination of corn and beef. label itc.