Hydrosphere quizs

Oxygen sag curve

• Shows how biological oxygen demand and dissolved oxygen in the water are affected by the addition of pollution.

• Illustrates the relationship between temperature and oxygen levels in aquatic environments.

• Depicts the seasonal variations in oxygen levels in freshwater bodies.

• Demonstrates the impact of photosynthesis on oxygen production in water.

3 adaptations of organisms living in Intertidal zones.

• can live submerged underwater, can tolerate drying out (desiccation), able to attach to a substrate

• can swim freely in water, can photosynthesize, can reproduce asexually

• can migrate to deeper waters, can change color for camouflage, can produce toxins

• can live in freshwater, can grow rapidly, can form symbiotic relationships

Euphotic zone

• The part of the ocean where sunlight is able to penetrate the water.

• The deepest part of the ocean where no light penetrates.

• The area of the ocean where only certain species of fish can survive.

• The region of the ocean that is affected by tides and currents.

Biodiversity

• The total number of species in the world

• The variety of living organisms in a given area

• The study of ecosystems and their interactions

• The process of evolution in living organisms

Headwaters

• Water formed at higher elevations; water has low biodiversity, is colder, and moves quickly.

• Water found at lower elevations; water is warm and has high biodiversity.

• Water that is stagnant and found in lakes; it is warm and has low biodiversity.

• Water that flows slowly through wetlands; it is cold and has high biodiversity.

Permeable

• Surface allowing liquids or gasses to pass through it

• Surface that repels water and air

• Surface that is solid and impenetrable

• Surface that absorbs moisture without allowing passage

Point-source pollution

• Single identifiable source of pollution

• Diffuse and widespread pollution

• Pollution from multiple sources

• Natural pollution sources

Thermocline

• A layer in water where temperature changes very quickly, preventing nutrient movement.

• A type of fish found in deep ocean waters.

• A method of measuring water temperature at different depths.

• A phenomenon that occurs only in freshwater lakes.

Estuary

• A body of freshwater that flows into a lake.

• Where the mouth of a freshwater river meets the ocean. Contains brackish water.

• A coastal area where saltwater and freshwater mix.

• A large river that flows into another river.

3 benefits of wetlands

• Water retention (flood control), prevents erosion, filters pollutants

• Increases soil salinity, promotes desertification, reduces biodiversity

• Enhances urban development, increases pollution, decreases water quality

• Reduces carbon sequestration, increases flood risk, promotes invasive species