As compared to coarse-grained igneous rocks, fine-grained igneous rocks
a. cool and solidify more quickly
b. cool and solidify more slowly
c. solidify at higher temperatures
d. solidify at lower temperatures

Which of the following is not a challenge to instituting sound global environmental policies? a. most changes are inexpensive and easy to implement. b. elected leaders who support unpopular environmental issues often are not re-elected. c. economic considerations outweigh environmental ones in many societies. d. there is no way to enforce international environmental agreements.

Which of the following is a way that advancements in technology improve humans' ability to measure air quality and protect human health?

Afootpath is to be constructed in a park in the shape of a parallelogram. when a coordinate plane is laid over a map of the park, the vertices of the footpath are (-4,2) (8,2) (11,7) and (-1,7). what is the perimeter of this path