Question

1. what effect does sea level rise have on coastal areas?

a. it stabilizes saltwater levels in rivers
b. it reduces wave heights during storms
c. it leads to increased flooding and erosion
d. it enhances coral reef growth near islands

Explanation:

To determine the effect of sea - level rise on coastal areas, we analyze each option:

• Option a: Sea - level rise would likely increase saltwater intrusion into rivers, not stabilize saltwater levels. So, this option is incorrect.
• Option b: Sea - level rise does not reduce wave heights during storms. In fact, higher sea levels can potentially make storm - related impacts worse. So, this option is incorrect.
• Option c: As sea levels rise, coastal areas are more prone to flooding because the sea can reach further inland. Also, the increased water levels and associated wave action can lead to more erosion of coastal landforms. This option is consistent with the known effects of sea - level rise.
• Option d: Sea - level rise, along with other factors like ocean acidification and increased storm activity, generally harms coral reefs rather than enhancing their growth. So, this option is incorrect.

Answer:

c. It leads to increased flooding and erosion