How did plant and animal fossils contribute to the theory of continental drift?
What will be an ideal response?
Similar plant and animal fossils found in both South America and Africa provided evidence that the two continents had at one time been connected together. This is especially true of the fossil plant Glossopteris, which had very large seeds, too large to be distributed by winds.
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Turbidity currents deposit sediments in ____ beds with ____
a. graded; fine sediments on top and coarse sediments on bottom b. stratified; fine sediments on top and coarse sediments on bottom c. graded; coarse sediments on top and fine sediments on bottom d. cross; fine sediments on top and coarse sediments on bottom e. cross; coarse sediments on top and fine sediments on bottom
Which one of the following represents a way to reduce point-source pollution contributing to cultural eutrophication?
A) Increase the use of vegetated waterways B) Increase the use of contour farming and crop rotation C) Remove nutrients from sewage-treatment effluents D) Include runoff detention ponds in subdivisions
Under feudalism,
A. slaves provided labor B. people agreed to work for a lord in return for protection C. entrepreneurs hired workers D. the government ran the economy
Which of the following climates does not have a summer wetter than its winter?
A) Monsoon B) Humid subtropical C) Mediterranean D) Humid continental E) Subarctic