The correct answer is: d) All of the above
Sand mining is the process of extracting sand from riverbeds, lakes, or beaches. It is a major source of sand for construction, but it can have a number of negative environmental impacts.
One of the most serious impacts of sand mining is riverbank erosion. When sand is removed from a riverbed, the riverbanks become unstable and can collapse. This can lead to flooding, landslides, and the loss of riverside habitats.
Sand mining can also destroy aquatic habitats. When sand is removed from a riverbed, it can disrupt the flow of water and change the water temperature. This can make it difficult for fish and other aquatic animals to survive.
In addition, sand mining can create navigation challenges. When sand is removed from a riverbed, it can make it difficult for boats and ships to navigate. This can disrupt transportation and trade.
Overall, sand mining can have a number of negative environmental impacts. It is important to consider these impacts before undertaking any sand mining projects.
Here are some additional details about each of the options:
- Riverbank erosion: When sand is removed from a riverbed, the riverbanks become unstable and can collapse. This can lead to flooding, landslides, and the loss of riverside habitats.
- Habitat destruction: Sand mining can also destroy aquatic habitats. When sand is removed from a riverbed, it can disrupt the flow of water and change the water temperature. This can make it difficult for fish and other aquatic animals to survive.
- Navigation challenges: In addition, sand mining can create navigation challenges. When sand is removed from a riverbed, it can make it difficult for boats and ships to navigate. This can disrupt transportation and trade.