List the following minerals in order of decreasing hardness apatite, calcite, corundum, feldspar

How do diseases caused by bacteria and diseases caused by viruses react to antibiotics?

Which ideas did your answer contain? check all that apply. no food for organisms no oxygen in the atmosphere no trees or flowering plants no products based on trees or plants (building materials, medicines, fuels, fibers) no fossil fuels

Why do oceanic plates tend to subduction when colliding with a continental plate