• Lake Baikal

It's the oldest and deepest lake in the world.

Holds 1.5 of the world's unfrozen freshwater.

Its oligotrophic lake

• Eutrophic

Large amount of nutrients

shallow

lots of alga growth

low oxygen

• Oligotrophic

water with less nutrients

more depth

more clarity

• Freshwater

Water with minimal amounts of solutes and dissolved salts.

• Watershed

an area of land that flows into a specific river, basin, or sea

• Hypoxia

when oxygen in the water is so low it cannot support marine life

• Gulf of Mexico Dead Zone

Hypoxia- oxygen in the water is slow it cannot support marine life.

• Eutrophication

the process of excessive nutrients in the water which cause a dense growth of plant life, suffocating the life below

• Nitrates

. Nitrates are common components of fertilizers and explosives

• Phosphates

phosphate is an inorganic compound composed of a phosphorus atom bonded to four oxygen atoms.

• Erosion

the process where rocks are broken down by natural forces such as wind or water.

• Riparian Buffer Strip

a vegetated “buffer-strip” near a stream, which helps to shade and partially protect the stream from the impact of adjacent urban, industrial or agricultural land use.

• Aquifer

is an underground layer of water-bearing, permeable rock, rock fractures, or unconsolidated materials

• Groundwater depletion

Depletion of water means scarcity of water which means that there is a lack of water.

• Groundwater contamination

s the addition of undesirable substances to groundwater caused by human activities (