In the scientific process, projections are tested with further experiments, models or observations
Indicate whether the statement is true or false
T
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P-waves refract at the boundary between inner and outer core because
A) there is a change of phase between inner and outer core. B) there is a change in chemical composition between inner and outer core. C) they gain speed. D) they lose speed.
Which ecosystems are included in the marine fishery?
a) Areas of upwelling b) Coastal and coral reef systems c) Open ocean d) Tropical shelves and non-tropical shelves e) All of the above
Supercell thunderstorms differ from ordinary cell (air mass) thunderstorms because
a. the updraft in a supercell thunderstorm is shorter-lasting and is stationary.. b. ordinary thunderstorms do not produce hail. c. supercell thunderstorms produce precipitation. d. the supercell thunderstorm is greater in size. e. the updraft in a supercell thunderstorm is longer-lasting and rotates.
The theory of plate tectonics can be used to explain all of the following EXCEPT:
A. the presence of magnetic anomalies on the ocean floor. B. the presence of glacial deposits in what are now tropical areas. C. the distribution of earthquakes and volcanoes. D. the origin of mountains. E. the origin of the Earth's core.