A B
Guide questions:
1. What laws of stratigraphy does the picture in letter A tell us?
2. In picture B, new rocks were introduced. What law is best explained in this
kind of rock stratum?
3. How old is the rock that was intruded in stratum B?
4. What geologic processes
existed in stratum B which
its
deformation?
5. If you want to determine the age of the rocks in the rock layer, what
method are you going to use?
causes

an organism's phenotype is the  form of a trait  that it  displays. for  flowercolor, a pea  plant  can  display  a phenotype of purple or white flowers. an organism's  genotype  is the alleles of a gene it contains. based on his data, mendel concluded that a phenotype can be  determined  by more than one  genotype.

just finished the test, the answer is d, greg is the least cost-effective because he charges the most for the project

d. changes in climate and historical records

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