Rocks are comprised of inorganic substances called _______.

_________ is the process of changes in composition and structure of the rock due to wind, water, temperature, and chemical reactions.

How many modes of indirect disease transmission are there?

Marble is a good example of what type of rock?

This rock type comprises the crust of the planet and comes from cooled and hardened molten lava.

What is the sewage solids removed from wastewater otherwise known as?

_________ is having the potential to cause cancer in humans.

_________ show the location of different soil series in an area and are available from most Soil Conservation Service (SCS) offices.

________ is the unweathered rock formation underlying the surface soils.

What are the two fundamental objectives of environmental technology?