Sea Level Change Quiz for IGCSE Geography

What is eustatic change in sea levels?

• A change in sea level due to the melting of ice caps

• A change in sea level due to tectonic activity

• A change in sea level due to thermal expansion

• A change in sea level due to sediment deposition

Which of the following is an example of isostatic change?

• Tectonic uplift

• Thermal expansion

• Melting of glaciers

• Sediment deposition

How does tectonic uplift affect sea levels?

• It causes a rise in sea levels

• It causes a fall in sea levels

• It has no effect on sea levels

• It causes sea levels to fluctuate

What is the primary cause of thermal expansion in oceans?

• Increase in ocean temperature

• Decrease in ocean salinity

• Increase in ocean salinity

• Decrease in ocean temperature

Which process is directly linked to climate change affecting sea levels?

• Thermal expansion

• Tectonic uplift

• Sediment deposition

• Isostatic rebound

What is isostatic uplift?

• The rise of land masses after the removal of ice weight

• The sinking of land due to sediment deposition

• The rise of sea levels due to melting ice

• The sinking of sea levels due to tectonic activity

Which of the following is NOT a factor in sea level change?

• Tectonic uplift

• Thermal expansion

• Sediment deposition

• Ocean currents

What happens to sea levels during a period of glacial melting?

• Sea levels rise

• Sea levels fall

• Sea levels remain constant

• Sea levels fluctuate

How does isostatic rebound affect coastal environments?

• It causes land to rise, reducing sea levels locally

• It causes land to sink, increasing sea levels locally

• It has no effect on coastal environments

• It causes coastal erosion

What is the effect of sediment deposition on sea levels?

• It causes a rise in sea levels

• It causes a fall in sea levels

• It has no effect on sea levels

• It causes sea levels to fluctuate