Humans have significantly affected natural vegetation except in regions too remote to be settled
Indicate whether the statement is true or false
T
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In which of the following places on Earth has the local environment's capacity to support its human population been exceeded most seriously?
A) India B) Australia C) Western North America D) Southern Africa
Some rural people are ____________________ to urban areas in search of a better life or ____________________ by poverty, famine, war or job insecurity.
Fill in the blank(s) with the appropriate word(s).
Compared with a 1-kg block of solid iron, a 2-kg block of solid iron has the same
A) mass. B) volume. C) weight. D) all of the above E) none of the above
In some instances electromagnetic radiation behaves like a wave. In other instances electromagnetic radiation behaves more like a particle. Which behavior more accurately describes the true nature of electromagnetic radiation?
A) Particle behavior more accurately describes the true nature of electromagnetic radiation. B) Electromagnetic radiation behaves both as a wave or as a particle depending on the circumstance. C) Wave behavior more accurately describes the true nature of electromagnetic radiation. D) There is no circumstance in which electromagnetic radiation can be described as either portraying particle or wave behavior.