4. the orthocenter is
on the exterior of the triangle.
• a. sometimes
o b. always
o c. never
o d. infrequently

Plants can have a positive and negative effect on the rate of weathering

Compounds which are found naturally in the earth are called: a. ores b. composites c. rocks d.minerals

The figure is a square. its diagonals meet to form four right angles. what is the approximate value of x? 2.8 units 3.3 units 4.0 units 5.7 units