Petroleum and oil reserves are often found in sedimentary rocks because
A) these rocks are very porous and permeable.
B) chemical changes occur to create these reserves.
C) these rocks can contain fossilized organic matter.
D) oil accumulates in the sediments.
C
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With political independence in the 1950s and 1960s, the former European colonies of Africa were finally able to achieve economic independence from the world's core
Indicate whether this statement is true or false.
Describe slab pull and ridge push. Which of these forces appears to contribute more to plate motion?
What will be an ideal response?
Pangea greatly ________ the world's shorelines, and ________ the areas of climatically harsh interiors.
A. shortened; reduced B. shortened; increased C. lengthened; reduced D. lengthened; increased
The most massive migration in Latin America during the 20th century has been a(n) ________ migration
A) rural to urban B) urban to rural C) rural to suburban D) Caribbean to Europe E) Latin America to Europe