Quais são as principais teorias de movimentação da crosta terrestre desenvolvidas durante o século XX

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Which of the following is not a challenge to instituting sound global environmental policies? a. most changes are inexpensive and easy to implement. b. elected leaders who support unpopular environmental issues often are not re-elected. c. economic considerations outweigh environmental ones in many societies. d. there is no way to enforce international environmental agreements.

In the developed world, describe the changing role of women in agriculture.

What body of water is the second cataract of the nile river submerged under