I WONDER - How Does Erosion Affect Waterfalls?

Waterfalls, though seemingly permanent, can change location over time due to erosion. As water falls over a cliff, it erodes the rock beneath, causing the waterfall to retreat upstream. This process is exemplified by Victoria Falls in Africa, which has moved over five miles in thousands of years. Waterfalls can be seen as explorers, continuously shaping the landscape.

What common misconception about waterfalls is addressed in the video?

• They are always moving.

• They are only found in Africa.

• They are man-made.

• They are permanent fixtures.

What natural process causes waterfalls to change their location over time?

• Tectonic shifts

• Volcanic activity

• Erosion

• Earthquakes

How does erosion affect the position of a waterfall?

• It increases the height of the waterfall.

• It causes the waterfall to retreat upstream.

• It changes the color of the water.

• It makes the waterfall wider.

Which famous waterfall is mentioned as an example of a retreating waterfall?

• Victoria Falls

• Iguazu Falls

• Niagara Falls

• Angel Falls

How far has Victoria Falls moved over thousands of years?

• Two miles

• Exactly ten miles

• Less than a mile

• More than five miles