Course Code
esm322


Question
All but one are ways in which human activites affect the ioinc compositin of surface and ground water

Answer
Changing the atmospheric discahge cycles



Question
___ is measured by comparing the dissolved solids in a water sample with a standardised solution

Answer
Salinity



Question
The major source of turbidity in the open water zone of most lakes is typically

Answer
Phytoplankton



Question
Malignancies in children is linked to

Answer
Pesticides



Question
___tend to be strongly associated with sediments in rivers, lakes, and reservoirs

Answer
Metals



Question
___ matter is important in the cycling of nutrients, carbon and energy between producers and consumers

Answer
Organic



Question
Organisms, populations, and communities composed of different species make up the ___ of aquatic ecosystems

Answer
Biological diversity



Question
The concentrations of all of the following except___ tend not to be heavily influenced by metabolic activities of aquatic organisms

Answer
Calcium



Question
The ___ composition of surface waters is usually considered to be relatively stable

Answer
Anionic



Question
There are ____ major global average concentrations of cations

Answer
4


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