The answer is an enzyme.
When cutting DNA, scientist uses enzymes called restriction enzymes. These enzymes are naturally produced in bacteria as a defense against phages. So, enzymes cut DNA of the phages and thus inactivate it. Also, these enzymes do not cat DNA randomly, but on specific sites. This characteristic of restriction enzymes is used for some molecular biology techniques. All species' DNA contains target sites of restriction enzymes, but most organisms do not have restriction enzymes. Therefore, restriction enzymes are suitable for different techniques.
Limestone is essential for the formation of petroleum reservoirs
Limestone is great for soil as due to its structure, it can buffer acidic chemicals in soil
It is useful in the prevention of explosions from mining that are caused from too much methane release
It is useful in mediating the effects of erosion the the environment
