Watershed Dynamics and Impacts

The video tutorial explains what a watershed is, its natural boundaries, and the concepts of upstream and downstream. It covers the components of watersheds, including surface water, groundwater, and sub-watersheds, using the St. Lawrence River as an example. The tutorial also discusses how human activities like deforestation, dam construction, and urban development impact watersheds and their ecosystems.

What is another term for a watershed?

• Drainage basin

• Floodplain

• Waterfall

• Aquifer

What determines the location of a watershed?

• Soil type

• Climate

• Vegetation

• Elevation of the land

How does gravity affect water flow in a watershed?

• It keeps water stagnant.

• It causes water to flow from high to low points.

• It causes water to flow from low to high points.

• It evaporates water quickly.

What is the relationship between the St. Lawrence River and the Atlantic Ocean watersheds?

• They are completely separate.

• They do not interact at all.

• The St. Lawrence River watershed is part of the Atlantic Ocean watershed.

• The Atlantic Ocean watershed is part of the St. Lawrence River watershed.

Which human activity can slow down the flow of a river?

• Agricultural expansion

• Urban development

• Building a hydroelectric dam

• Deforestation

What happens to soil erosion when a region is deforested?

• It stops completely.

• It accelerates.

• It remains the same.

• It decreases.

How can urban development affect watersheds?

• It has no effect.

• It decreases water flow.

• It can change the pattern of streams and rivers.

• It increases the number of watersheds.

What is a potential consequence of a sewage spill in a river?

• It only affects the immediate area.

• It affects areas upstream.

• It affects areas downstream.

• It has no impact on the river.

Which cities are affected by a sewage spill in City B?

• City C and City D

• City A and City C

• City A and City D

• City B and City D

What is the effect of a disrupted river on a larger river it flows into?

• The larger river dries up.

• The larger river flows faster.

• The larger river is impacted.

• The larger river is unaffected.