Describe three limitations of science in general (as well as environmental science)
What will be an ideal response?
1. Scientists cannot prove or disprove anything absolutely because there is always some degree of uncertainty in scientific measurements, observations and models.
2. Scientists are humans and thus are not totally free of bias about their own results and hypotheses.
3. Many systems in the natural world involve a huge number of variables with complex interactions.
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In open water, the dominant producers are
A. trees. B. ferns. C. fish. D. grasses. E. phytoplankton.
Most coral reefs are located in shallow water because below this depth, ________
A) sunlight levels are too low to sustain the photosynthetic algae living within the coral exoskeleton B) there is not enough oxygen C) water currents are too fast for coral to colonize D) water temperatures are too cold for coral to grow
A map scale of 1:100,000 is an example of a(n) ____
a. graphic scale b. bar scale c. thematic scale d. representative fraction scale e. verbal scale
Which of the following changes are not evidence of migrating magma?
A) Changes in the pattern of earthquakes produced by moving magma B) Molten rock flowing down the flank of a volcanic cone C) Increase in ground temperature D) Changes in the volcanic gases released from the volcano