1.
this biome has low salinity, has a watershed, and plants and algae make up the bottom of the foodweb
2.
low level of primary productivity in lakes/ponds
3.
high level of primary productivity in lakes/ponds
4.
this biome has high salinity and primary productivity depends on depth
5.
this zone has enough light for photosynthesis
6.
this zone does not have enough light for photosynthesis
7.
Amount of water used for all purposes per person over a given time
8.
Contains 20% of the world’s available surface water
9.
these cover 71% of Earth’s surface and moderate Earth’s temperature
