The chemical in limestone, chalk and marble is calcium - CaCO3.
- Limestone is quarried for use in making glass, cement and concrete.
Makes glass by heating limestone, sodium carbonate and sand together.
Cement by heating limestone and clay.
Concrete by mixing sand, gravel, cement and water.
Problems of quarrying is the creation of noise and dust, damage to animal habitats and traffic congestion/road damage.
Advantages of quarrying limestone is it provides jobs and the limestone industry is important for the local and national economy.
Negative impacts of quarrying is minimised by restricting quarry size, blasting in quarries at specific times, using water sprays to reduce dust, earth barricades to reduce noise and rebuilding the land when it closes.
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