Incomplete dominance is when one allele is not completely dominant over the other (blend in), and codominance is when both alleles affect the phenotype(appearance)
Example of incomplete dominance: a red flower mates with a with flower and makes an pink offspring
Example of codominance: a brown cow mates with a with cow and the offspring being with and brown polkadots
Answer:
Fracking can contaminate water supplies if it is not done properly, because the fracking fluid injected into rock to enable gas to be released often contains chemicals. If the borehole is not properly cased to stop leaks, the fracking water can escape into the aquifer
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<span>metamorphic and igneous rocks
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Only sedimentary rocks can become, by changing temperature and pressure, in metamorphic rocks.
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I am not sure but here is a link to help you :)
https://www.ncbi.nlm.nih.gov/pubmed/22322095
