3. Our changing Earth page 4

What are the two main processes that shape the landscape?

• Erosion and weathering
• Deposition and tectonics
• Volcanism and sedimentation
• Melting and freezing

What is the primary cause of landscape erosion?

• Human activities
• Volcanic activity
• Glacial movement
• Agents like water, wind, and ice

What happens to eroded materials after they are carried away by agents like water and wind?

• They evaporate
• They disappear
• They settle at the bottom of the ocean
• They are eventually deposited

What type of rock formation typically results in the formation of a waterfall?

• Sedimentary rock
• Igneous rock
• Metamorphic rock
• Hard rock

Which of the following waterfalls is located in South America?

• Niagara Falls
• Victoria Falls
• Angel Falls
• Iguazu Falls

How are meanders formed in a river's course?

• Through volcanic activity
• By earthquakes
• Due to continuous erosion and deposition
• By glacier movement

What is the outcome of continuous erosion and deposition along the sides of a meander?

• Formation of floodplains
• Creation of waterfalls
• Expansion of the river's width
• Deepening of the riverbed

What is an ox-bow lake?

• A type of waterfall
• A flat area near a river
• A meander that has been straightened
• A cut-off loop of a river

How does flooding impact the neighboring areas of a river?

• It leads to erosion
• It causes deposition of sediments
• It creates steep valleys
• It results in volcanic activity

What do rivers deposit along their banks during flooding?

• Rocks and boulders
• Layers of fine soil and other material
• Magma and lava
• Glacial debris