If the presence of greenhouse gases in Earth's atmosphere continues to increase at the present rate, scientists predict that in the next 50 to 100 years, atmospheric temperatures could rise by 20oC. All of these could be consequences of global warming EXCEPT .

Select one:
a. an increase in arid and semi-arid areas on Earth
b. a rise in the amount of vegetation found in tundra and taiga regions
c. permanent flooding of low-lying coastal wetlands
d. an increase in square miles of polar ice covering Earth

answer;

a. sheep consumption efficiency would be reduced.

explanation;

-trophic efficiency is a measure of how much energy occurs at one level divided by the energy at the level immediately below it . trophic efficiency incorporates three types of efficiency:

-the proportion of available energy that is consumed (consumption efficiency).   it is the proportion of the available biomass that is ingested by consumers.

-the proportion of ingested food that is assimilated (assimilation efficiency).

-the proportion of assimilated food that goes into new consumer biomass (production efficiency).

-in this case, the grasshoppers would affect sheep by reducing the proportion of the available biomass that is ingested by the sheep.

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