Why are carbon dioxide concentrations expected to increase?
a. carbon dioxide concentrations are expected to increase, because fossil fuel burring is expected to
increase,
b, carbon dioxide concentrations are expected to increase, because of an increase in agriculture,
e, carbon dioxide concentrations are expected to increase, because more land will have to be deared
for increasing populations and agricultural use,
d. all of the above
select the best answer from the choices provided
оа
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the answer is d p: cell, q: organ, r: organ system, s: tissue

answer;

c. a tree whose roots are surrounded by wet sand.

explanation;

water stress is an important factor limiting the growth and productivity of forests.water stress is the most often cited cause of poor survival and growth of woody landscape plants.

-insufficient soil moisture is the most common form of water stress, but excess moisture that leads to poor soil aeration (hypoxia) can also result in reduced plant vitality. a tree whose roots are surrounded by wet sand would be least likely to experience water stress.