What percentage of the earth's water supply do the oceans represent?
What will be an ideal response?
97 percent
Environmental & Atmospheric Sciences
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Which of these chemicals that are emitted from a smelter not equipped with air pollution control equipment causes acid rain?
A. sulfur dioxide B. mercury C. arsenic D. cyanide
Environmental & Atmospheric Sciences
The origin of submarine canyons is not well understood but is most likely to be ____
A) erosional, caused by a combination of stream erosion and turbidity currents B) tectonic, representing down-folds of rock within the continental shelf C) organic, resulting from the activities of burrowing organisms D) glacial, through the process of depositing rock debris from melted ice on the shelf
Environmental & Atmospheric Sciences
What are heterotrophic organisms?
Environmental & Atmospheric Sciences
What are crevasses, and where do they form?
What will be an ideal response?
Environmental & Atmospheric Sciences