How great was the increase in agricultural productivity between 1800 and 1900?

folds are formed when heat and pressure is applied to the rock. the higher the temperature, the more pliable rocks become. folds are more likely to occur when the deformation caused by the compression is applied slowly. faults are defined as the displacement of rock that were once connected along a fault line.

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a. theta waves. this is because the person is in a light sleep which means the brain waves would show these kind of waves.

answer: not really

explanation: the disadvantages of wikipedia are:

the advantages of wikipedia are

the option which was not a function of missionaries in the northwest was the first one - they established posts for trading furs and other goods.

missionaries were sent around the world to spread religion and their knowledge and others - they were not merchants who sold furs and other goods.