What is an advantage of using nuclear power? A. Nuclear energy is very inexpensive.
O B. Nuclear energy is readily available.
O C. Nuclear power plants produce no greenhouse gases.
D. Nuclear power plants do not produce waste products.

Which of the following is most important in making the typical seed more resistant to adverse conditions than the typical spore? a) a different type of sporopollenin b) an internal reservoir of liquid water c) integument(s) d) ability to be dispersed e) waxy cuticle

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

Several billion years ago which gas was the least prevailant in the atmosphere