14. true or false: wolves are solitary animals that join packs only to hunt. (1 point)
a. true
b. false

15. robert frost believes there's nothing worse one can do than swing on a fragile birch branch. (1 point)
a. true
b. false

16. according to al gore, each of us is a cause of global warming. (1 point)
a. true
b. false

17. the paramesvaran family includes 16 children. (1 point)
a. true
b. false

18. greenhouse gases are (1 point)
a. gases that release heat
b. gases that hold in heat
c. gases that create carbon dioxide
d. gases that consume carbon dioxide