The formation of a land bridge between North and South America caused southern migration of
some northern species. Indicate whether the statement is true or false.
T
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The magnetic field lines about a straight current-carrying wire are
A. elliptical. B. spiral. C. radial. D. circular.
Approximately what percent of lithosphere deformation occurs at plate boundaries?
A) 60% B) 70% C) 80% D) 90%
A student recognized the importance of laws that dramatically increase the recycling of glass and aluminum, reducing energy costs, the demand for raw materials, and pressure on landfills
Bottle laws reduce litter and the dangers of broken glass for people and wildlife. By recognizing these positive impacts of bottle laws and feeling the need to act responsibly, the student was showing A) obedience. B) stewardship. C) loyalty. D) trust.
The collapse of fisheries is most noticeable among the smaller fish that are consumed by larger predatory fish, such as sharks and tuna
a. True b. False Indicate whether the statement is true or false