Which type of eruption often generates tsunamis?
A. Steam explosion
B. Continental flood basalt
C. Caldera formation by collapse
D. Pyroclastic flow
Answer: A
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Physical methods for detoxifying hazardous wastes include
A. filtering with charcoal or resins to remove harmful solids. B. isolating the materials and placing them in safe storage. C. destroying toxic substances with bacteria and enzymes. D. activating chemical reactions to convert hazardous chemicals into harmless ones. E. using deep-well disposal.
Explain the difference between a scientific hypothesis and a scientific theory
What will be an ideal response?
What effect do the chemical reactions of ground water have on the porosity and permeability of aquifers?
A) Chemical reactions both increase and decrease the permeability and porosity. B) Chemical reactions neither increase nor decrease the permeability and porosity. C) Chemical reactions increase the permeability and porosity. D) Chemical reactions decrease the permeability and porosity.
Urbanization is increasing in South Asia due to changes in the economics of agriculture within the region
Indicate whether the statement is true or false