When natural waters are overloaded with plant nutrients such as nitrate and phosphate ions, they become
A. Oligotrophic
B. Eutrophic
C. Dystrophic
D. Metatrophic
E. Megatrophic
Answer: B
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By converting over our energy generation systems to renewable sources we are, in essence, attempting to mimic the natural processes that have sustained life on this planet for billions of years.
Answer the following statement true (T) or false (F)
What type of reaction is this? KAl3Si3O10(OH)2 + SiO2 --> Al2SiO5 + KAlSi3O8 + H2O
A) degassing B) dehydration C) decomposition D) decay
A glaciers budget is balanced when ____
A)additions to the zone of accumulation equal losses in the zone of wastage B)losses in the zone of accumulation equal additions to the zone of wastage C)the zone of accumulation receives more input than the zone of wastage D)the zone of wastage does not lose material E)the firn limit moves down in the summer and up in the winter
Use your knowledge of plate boundaries to answer whether an earthquake is likely or unlikely to occur at the location of the red circle.
A. Likely B. Unlikely