Uneven land surfaces created by limestone mining can cause transportation problems in the location. Which of these is the best plan to solve this problem? water the mining area regularly
reduce the use of heavy machinery in the mining area
choose other uninhabited locations for limestone mining
make reclamation mandatory after limestone has been removed

N. #3

Explanation:

this one just makes the most sense. If you mess with line stone to much or you are using to much heat around lime stone it will go boom. So the correct answer is #3.  

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the capital city of australia is canberra.

a 20-cm-long, cylindrical graphite (pure carbon) rod is inserted into an oxidizing atmosphere at 1145 k and 1.013 x 105 pa pressure. the oxidizing process is limited by the diffu- sion of oxygen counterflow to the carbon monoxide that is formed on the cylindrical surface.