Understanding Lake Changes

What is a key factor in the formation of most lakes in the northern hemisphere?

• Tectonic plate movements

• Glacier activity

• Volcanic activity

• River meandering

How does springtime affect the lake's ecosystem?

• It causes the lake to freeze over.

• It introduces particulates and nutrients into the lake.

• It reduces the lake's water level significantly.

• It leads to the formation of new lakes.

What role do phosphates and nitrates play in a lake during summer?

• They help in freezing the lake.

• They promote the growth of algae and plants.

• They cause the lake to dry up.

• They prevent the growth of aquatic life.

What happens to a lake as it undergoes succession?

• It remains unchanged.

• It transforms into a marsh or swamp.

• It turns into a desert.

• It becomes deeper and larger.

What is the ultimate fate of a lake undergoing succession?

• It merges with another lake.

• It turns into a river.

• It evaporates and becomes solid land.

• It becomes a permanent water body.