How much do invasive species losses cost the U.S. annually?
A) $138 million
B) $1.38 billion
C) $13.8 billion
D) $138 billion
E) $1.38 trillion
Answer: D
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What type of oil trap is formed primarily by depositional processes rather than by deformation?
a. salt dome b. stratigraphic c. volcanogenic d. fault e. anticline
How can a hydrogen atom, which has only one electron, have so many spectral lines?
A) The electron is able to move at various speeds. B) The protons in the nucleus are also giving off various light frequencies. C) One electron can be boosted to many different energy levels. D) The atomic radius of the hydrogen atom is relatively large.
The mind imagery that we use for understanding our surroundings and experiences are called ____
a. open systems b. regions c. mathematical and statistical models d. thresholds e. conceptual models
foliation refers to this characteristic of rocks:
a - hollow cores b - numerous joints c - large crystals d - wavy, banded lines e - small crystals