It has been argued that cutting old-growth forests and replacing them with plantations of young trees would help to alleviate the threat of global greenhouse warming. What important fact does this argument ignore?
A) Forests play too minor a role in global CO2 dynamics, which are affected far more by marine algae.
B) Young trees fix carbon at a lower rate per unit mass than old trees.
C) Most of the biomass of the cut trees would be added to the atmosphere as CO2 within a few years.
D) Most of the young trees would die within a few years.
Answer: C
You might also like to view...
Organisms that may cause red tide are
A. green algae. B. brown algae. C. dinoflagellates D. euglenids.
Enzymes are ____
a. RNA molecules b. proteins c. DNA molecules d. transposable elements e. codons
Which organisms would most likely have the highest tissue concentration of DDT?
a. zooplankton b. small herbivorous fish c. large predatory fish d. osprey e. large herbivorous fish
Filter feeders on coastal shelves tend to dominate in areas that have:
a. moving currents and coarse sediments. b. no currents and fine sediments. c. silty areas. d. muddy areas.