Although hydroelectric dams generate electricity without directly producing greenhouse gases, they ________
A) eliminate wildlife habitats and affect the temperature of waterways
B) produce as much other air pollutants as coal-fired power plants
C) are short-lived structures that have to be rebuilt about every 20 years
D) contribute only about 5% of global electricity production
A
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In the open ocean salinity ranges from 32 to 37%. Indicate whether the statement is true or false
Which ethnic group is most common in Latin America and is a mix of Native American and Spanish heritage?
a. frias b. helandas c. Creoles d. mulattos e. mestizos
Water vapor is a greenhouse gas
Indicate whether this statement is true or false.
A midlatitude anticyclone ________
A) is more than one air mass B) exhibits instability C) has a front in its center D) is associated with fast winds E) is associated with sunny, dry weather