What is eutrophication?
A) A set of physical, chemical, and biological changes in an environment when there is an excessive release of nutrients in the water
B) A large plankton bloom dominated by one species
C) The removal of oxygen from the water of an area
D) The manmade changes to the environment
A
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Compare and contrast deforestation in the Caribbean islands (such as Haiti) and the Caribbean Rimland. What are the factors that have contributed to greater conservation of forests in the Rimland?
What will be an ideal response?
An atom has 2 electrons, 3 protons, and 3 neutrons. What is the atom's mass number?
A) 3 B) 5 C) 6 D) 8 E) Cannot be determined from the information given
What is a primary reason an increase in glaciers on land would cause sea level to fall?
A. an increase in snow cover causes the atmosphere to heat up which causes more evaporation B. glaciers depress the land surface, which pulls sea level down with it C. because the temperature of the oceans decreases from cold glacial streams D. glaciers tie up large volumes of water that would otherwise be in the sea
The North American craton
A. has only 1,000-2,000 meters of sedimentary rock overlying basement rock B. has rock beneath any sedimentary rock that is old plutonic and metamorphic rock C. covers the central part of the United States and Canada D. All of these choices are correct.