As CO2 concentrations in the atmosphere continue to increase,which of the following will be the probable effect?
A) increased plant biomass worldwide
B) increased incidence of hay fever
C) increased incidence of asthma
D) an increase in all of these
Correct Answer:
Verified
Q26: Amal published a scientific paper on flowering
Q27: Hay fever is more properly called
A)contact dermatitis.
B)allergic
Q28: Most hay fever is caused by pollen
Q30: The monarch butterfly contains cardioactive glycosides obtained
Q32: _ is a natural insecticide from the
Q33: A rare and sometimes fatal allergic reaction
Q35: The study of periodic plant life cycle
Q41: _ belong to a family of common
Q48: The drink from the juice of _
Q54: The leaves and stems of the _
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