Why do ethnicities engage in ethnic cleansing and genocide?

The point where two air masses meet is called a

Less developed nations have low literacy rates. true or false

If you were a casual recreational hiker with young children, which of the following trails would be least strenuous for a leisurely family outing? a. merced lake trail b. mirror lake loop trail. c. tenaya lake and tuolumne meadows trail d. el capitan trail