Which of the following describes the grains found in igneous rocks?
a. coarse grained onlyb. small grained onlyc. no grains presentd. large grained, small grained, or no grains present

Which set of terms best describes a community of miners who live out in the countryside of west virginia and use specialized geological equipment to analyze the composition of rock?

Which statement is true for bacteria a. bacteria have complex internal structures b. all bacteria are spiral in shape c. all bacteria cause disease in animals d. bacteria break down some foods

These are the components of the reservoirs of carbon that are exchanged in our environment.