?Life raft ecosystems are areas with high poverty levels and where most people depend on ecosystem services for survival.
Answer the following statement true (T) or false (F)
True
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Imagine you fly a direct route from northern Greenland to the southern part of Hudson Bay. The correct sequence of climate types you would pass would be
A) Dfc, ET, E. B) Dfc, E, ET. C) ET, E, Dfc. D) EF, ET, Dfc.
According to elastic rebound theory, rocks deform and bend. When their internal strength is exceeded they rupture. This energy release is called an earthquake
Indicate whether the statement is true or false
Under the theories of Thomas Malthus, what is the difference between a positive check and a negative check on population growth?
A) A positive check reduces the fertility rate; a negative check reduces the mortality rate. B) A positive check increases the fertility rate; a negative check increases the mortality rate. C) A positive check increases the fertility rate; a negative check reduces the mortality rate. D) A positive check reduces the fertility rate; a negative check increases mortality rate. E) There is no difference since both reduce population growth.
Limitations of wind and solar energy include all of the following except
A. both vary in intensity regionally. B. both are very dispersed energy sources. C. both entail a storage problem. D. both are high pollution forms of energy production.