What stimulated the new field of science called oceanography?
a. The results of the HMS Beagle expedition
b. The naturalist Alexander Agassiz
c. Samples and information from the Challenger expedition
d. The United States Exploring Expedition's discovery of new species
ANS: C
The HMS Challenger expedition was the first to discover life in the depths of the ocean. They found
over 4 thousand new species. This was key to a new field of study?oceanography. Information can be
found in the section The First Scientific Experiments Were Undertaken by Governments
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Why would astronomers be interested in placing a gamma ray detecting observatory in space?
A) to map high-energy electromagnetic waves from distant sources that would be blocked out or scattered by Earth's atmosphere B) to map gamma ray emissions from radioactive elements on Earth C) to detect nuclear weapons tests on Earth D) to map gamma ray emissions coming from the Sun
Sediment transportation in the coastal zone is called _______________. (two words)
Fill in the blank(s) with correct word
The addition of large amounts of bioavailable nitrogen and phosphorus to our streams, lakes, and coastal areas, is responsible for which of the following?
A) reduction in water levels B) lake size increases C) lake and stream eutrophication D) lake and stream magnetization E) increase in breast and prostate cancer in humans
Dense marine flows composed of a mixture of water and sediment are called turbidity currents. Indicate whether the statement is true or false