Your submission will be scanned throughTurnitiv, that is, similarities to others’ textswill clearly come out. Any form of academic misconducts(plagiarism) is strictly prohibited. This includes sharing of thetexts with other students (both parties will be penalised in suchcase). Never pass your text to the others before the submission.This is an individual assignment.   

Write two free essays for your thoughts on the Precambrian andPhanerozoic problems below. The text should be concise. No limit inlength, but each of two discussions may be no more than 500 words.Illustrations for explaining your points are required.

1) Discuss unique features of Archaean tectonics.
2) Possible relationships of Euramerican Carboniferous black coals,O2, CO2 and Gondwanan glaciation.