Different types of metamorphic rocks are distinguished by the:
a. chemical make-up of the rock.
c. location of the rock formation.
b. location in which the rock was found.
d. arrangement of mineral grains within the rock.

Based on this map, which statement about africa’s economic activity is most accurate? a) coastal countries are all members of opec b) economic development is more common with opec nations c) coastal countries have more access to productive resources d) economic development is more common above the sahara desert

The european union was formally established in

Zac wanted to determine the measure of r and of ? r in the triangle below. to fine the measure of r, zac sets up the problem.42^2 + 24^2 = r 2. determine whether zac set the problem up correctly.