About 150 years ago, agriculture underwent a revolution due to
A) genetic engineering of new crops.
B) the development of new herbicides and pesticides.
C) the industrial revolution, which brought changes in agricultural technology.
D) new markets that emerged from increased international trade.
C
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Briefly discuss Malthus's predictions of population and resources and some of its criticisms
What will be an ideal response?
The single largest aragonite sand mining operation is in Alaska
a. True b. False
How were the Himalayas formed?
A) by the rifting (pulling apart) of the Eurasian Plate and the Indo-Australian Plate B) by the collision of the Indian subcontinent with the Eurasian Plate C) by the upwelling of magma from a hot spot beneath the Indian subcontinent D) by the erosion of the landscape north and south of the region that would become the mountains E) by volcanic activity
Weathering by salt crystal growth is most effective in _____
a. arid regions and rocky coastal locations b. tropical rainforests c. steppe climates d. tundra climates e. ice sheet climates