4. Were there any abnormalities in the tree before it was cut down; such as fire or damage, that are evident in the tree ring sample? Does it appear that the environmental conditions were constant throughout the years or varied? Explain your answer.

what are the options?

true                                                                                                       true true true true true true

the rocks are classified by the geological process they are formed by. the three main groups of rocks are igneous, metamorphic, and sedimentary. minerals are not they are classified under the chemical classes they are in. these groups include silicates, sulfates and carbonates.