Most drug urine tests done for schools do not test for alcohol or tobacco. write a clear and coherent argument for why you agree or disagree with this policy?

I disagree with this policy because they are ignoring drugs that can cause chronic disease within children who start using them early.  all drugs are dangerous if abused.

igneous rocks which formed by the crystallization of magma at the surface of the earth called extrusive rocks. they are characterized by fine-grained textures because the rapid cooling at or near the surface did not provide enough time for large crystals to grow.