Located high in the Rocky Mountains of Colorado are lakes formed by mountain glaciation. These ___________ lakes are beautiful but low in nutrients and biodiversity.
Fill in the blank(s) with the appropriate word(s).
oligotrophic
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Though the United States runs a trade deficit of many hundreds of billions of dollars per year, the U.S. ________ industry actually runs a trade surplus of around $25 billion. It is the USA's leading source of foreign income
A) entertainment B) clothing C) soft drink D) cell phone E) automobile
El Niño is a shift in the circulation in the Pacific Ocean that occurs every year in December
Indicate whether the statement is true or false.
Scientists believe that some answers to proposed question will ultimately never be known. Indicate whether the statement is true or false
Part of the reason for the lack of good flood control in the United States is that ________.
- sufficient funding is actually present, but the groups to carry out the work are too small - there has been no long-term planning that showed a need for flood control - there is no use spending money for something we cannot control anyway - government spending priorities have shifted, and flood control funds have been cut - money has been tight, and government spending overall has been reduced