1.
Not enough light for photosynthesis
3.
Shallow and near shore with algae and emergent plants. Highest level of photosynthesis
4.
Open water, contains phytoplankton to photosynthesize.
5.
in deep lakes between Limnetic and Benthic, no light or producers
6.
amount of water used for all purposes per person
7.
Unevenly distributed human need
8.
Factor in water availability
9.
What contains 20% of the worlds available surface water
10.
97% of water is ________
11.
Transport water over long distances
12.
Cover 71% of the Earths surface
