Compare and contrast the concepts of slab-pull and ridge-push. How might mantle plumes influence plate movement? What will be an ideal response?
The student should discuss mantle convection cells and the evidence that supports their
existence. The student should discuss the effects of gravity and thermal differences on plate
movement.
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A country's ecological footprint is calculated from all but which of the following?
A) size of the population B) the education of the population C) the affluence of the population — calculated in terms of how much they consume D) the technologies being used — measured in term of the intensity of resource use E) both the size of the population and the education of the population.
An example of artificial selection is the
A) breeding of corn from teosinte. B) observation that some snakes retain tiny, incomplete hind legs. C) evolution of antibiotic-resistant bacteria. D) fact that all mammalian limbs are made up of the same set of bones.
________ is the buildup of salts in soils as a result of improper irrigation
A) Erosion B) Desertification C) Leachate D) Salinization
A thunderstorm is a storm containing ____________________ and ____________________
Fill in the blank with correct word.