The correct answer is d) All of the above.
Excessive sand mining can lead to a number of environmental problems, including coastal erosion, water table depletion, and loss of biodiversity.
Coastal erosion is caused by the removal of sand from beaches and dunes. This can lead to the loss of land, the destruction of coastal habitats, and the increased risk of flooding.
Water table depletion is caused by the removal of sand from aquifers. This can lead to a decrease in the amount of water available for drinking, irrigation, and other uses.
Loss of biodiversity is caused by the destruction of habitats and the fragmentation of ecosystems. This can lead to the decline or extinction of species.
Excessive sand mining is a serious problem that can have a devastating impact on the environment. It is important to be aware of the potential consequences of sand mining and to take steps to protect our natural resources.
Here are some additional details about each of the problems that can be caused by excessive sand mining:
- Coastal erosion: When sand is removed from beaches and dunes, it can no longer protect the coast from the effects of waves and storms. This can lead to the loss of land, the destruction of coastal habitats, and the increased risk of flooding.
- Water table depletion: When sand is removed from aquifers, it can no longer hold water. This can lead to a decrease in the amount of water available for drinking, irrigation, and other uses.
- Loss of biodiversity: When sand mining destroys habitats and fragments ecosystems, it can lead to the decline or extinction of species.
It is important to be aware of the potential consequences of sand mining and to take steps to protect our natural resources.