The openings on the surfaces of plant leaves through which gases move into and out of are known as
A) guard cells. B) stomata. C) chlorophyll. D) chloroplasts.
Question 2
Air that is not saturated will cool or heat at a rate of ________ as it rises or descends, respectively.
A) 10C per 1000 m (5.5F per 1000 ft.)
B) 6.4C per 1000 m (3.5F per 1000 ft.)
C) 6C per 1000 m (3.3F per 1000 ft.)