Explain how immigration has both advantages and disadvantages for Europe
What will be an ideal response?
Answers should talk about how aging populations gain a youthful workforce, but this is accompanied by cultural change.
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What is the major type of pollutant produced by a large cattle feedlot?
A. oxygen-demanding B. nitrogen-demanding C. heavy metals D. thermal
Suppose you were going to install photovoltaic solar panels to generate electricity from the Sun at your house, and you wanted the Sun to shine on them at a 90° angle on the equinoxes. At what angle would they need to be placed, based on the latitude of your home? Should they face north or south?
What will be an ideal response?
____ are a pair of specialized shearing teeth in members of the mammal order Carnivora
a. Molars b. Carnivores c. Carnassials d. Ungulates e. Premolars
In most natural systems, "equilibrium" generally means that ____
a. factors in the system are constantly changing b. interrelated factors in the system are not well-adjusted to one another c. all factors in the system are equally important to the way that the system functions d. inputs into the system are balanced by outputs e. no changes are occurring