How have oceanographers learned most about the geology of the sea floor?

a) Exploration by submarines and submersibles
b) Scuba diving
c) Mapping by satellite
d) Acoustic (seismic) sounding and profiling
e) Remotely operated vehicles (ROV) and cameras


D

Environmental & Atmospheric Sciences

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Europe's two most populous cities are:

A. Rome and Madrid B. London and Paris C. Paris and Berlin D. Berlin and Rome

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Rachel Carson was particularly critical of the use of DDT to

A) control the spread of Dutch elm disease. B) eradicate mosquitoes in wetland areas. C) control pests in national parks. D) fertilize large areas of corn and soy crops.

Environmental & Atmospheric Sciences

The depth of sediment eroded during floods is called _______________

Fill in the blank with correct word.

Environmental & Atmospheric Sciences

The two types of crust are known as lithospheric and oceanic.

a. true b. false

Environmental & Atmospheric Sciences