Why is the early rock record of the Precambrian rocks more difficult to interpret than the rock

record of the Phanerozoic Eon? What will be an ideal response?


Precambrian rocks have been altered by metamorphism, completely deformed, or buried deeply
beneath younger rocks. There are few fossils and they are of little use stratigraphically.

Environmental & Atmospheric Sciences

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The deep-sea floor, between 4000 and 6000 m depth, covers more of Earth's surface than the continents.

Answer the following statement true (T) or false (F)

Environmental & Atmospheric Sciences

The expansion of desert-like landscapes, generally as a result of human activities in marginal lands, is called _______________

Fill in the blank(s) with correct word

Environmental & Atmospheric Sciences

Waves generated by wind are also known as ________

A) waves of oscillation B) waves of translation C) trough waves D) forced waves E) backwash

Environmental & Atmospheric Sciences

Judge the following sentence according to the criteria given below: Winds on Earth tend to blow more

north-south than east-west BECAUSE the Coriolis effect causes all winds to bend to the right. a. The assertion and the reason are both correct, and the reason is valid. b. The assertion and the reason are both correct, but the reason is invalid. c. The assertion is correct, but the reason is incorrect. d. The assertion is incorrect, but the reason is correct. e. Both the assertion and the reason are incorrect

Environmental & Atmospheric Sciences