What fraction of the earth did the former continental glaciers cover? one tenth
one third
one half
three-fourths

PLEASE HELP

Where would you expect to see seedless plants, such as ferns and mosses? a. in a botanical museum, because they are all extinct b. low and close to the ground in a moist environment c. climbing high while circling the branches of another plant d. deeply rooted in a forest with a trunk that reaches 20 meters or more

What organ systems are working to you cool down after a workout?

Which of the following produces carbon dioxide? a. plants b. animals c. decomposers d. all of the above