Which concept describes early Earth as separated into layers by gravity, with each deeper layer denser than the layer
above?
a. Centrifugal force
b. Density stratification
c. Continental drift
d. Tectonic theory
e. Seismic theory
b
Environmental & Atmospheric Sciences
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Provide a hypothetical or a historical example of both primary and secondary succession
What will be an ideal response?
Environmental & Atmospheric Sciences
What country contains the highest concentration of endangered animals?
A. Mexico B. United States of America C. Costa Rica D. Trinidad and Tobago E. Tanzania
Environmental & Atmospheric Sciences
The structure that helps neurons transmit action potentials more quickly is a
A) dendrite. B) cell body. C) synapse. D) myelin sheath.
Environmental & Atmospheric Sciences
The greatest potential pollution and public health problem resulting from the use of landfills in Florida is related to
A) methane production. B) settling. C) incomplete decomposition. D) groundwater contamination.
Environmental & Atmospheric Sciences