What is the purpose of beach nourishment? Select the two correct answers.
1. to remove sand from a beach to offshore
2. to mitigate beach erosion for a period of time
3. to replenish sand on a beach
4. to stop all beach erosion from occurring
5. to help ocean life survive after beach erosion
The correct answers are:
2. to mitigate beach erosion for a period of time
3. to replenish sand on a beach
The correct answers are:
2. to mitigate beach erosion for a period of time
3. to replenish sand on a beach
To determine the purpose of beach nourishment, we should understand what beach nourishment is. Beach nourishment refers to the process of adding sand to an eroding beach in order to combat erosion and preserve the beach's profile and recreational value. With this understanding, let's consider the options given:
1. to remove sand from a beach to offshore: This option is not correct as beach nourishment involves adding sand to a beach, not removing it.
2. to mitigate beach erosion for a period of time: This option is correct. Beach nourishment is aimed at reducing or mitigating the impacts of beach erosion, but it does not provide a permanent solution.
3. to replenish sand on a beach: This option is correct. Beach nourishment involves adding sand to a beach to replenish the eroded or lost sediment, which helps to restore and maintain the beach's natural profile.
4. to stop all beach erosion from occurring: This option is not entirely correct. Beach nourishment can help slow down or mitigate beach erosion, but it does not completely stop it.
5. to help ocean life survive after beach erosion: This option is not specifically related to the purpose of beach nourishment. While beach nourishment can indirectly benefit ocean life by restoring and preserving a healthy beach ecosystem, it is not its primary purpose.
Therefore, the correct answers are options 2 (to mitigate beach erosion for a period of time) and 3 (to replenish sand on a beach).