What is a serious challenge facing both israel and arab countries in the middle east

In the diagram below, ab and bc are tangent to o. what is the measure of

Witch of the following volcano hazards is made up of rocky particles about the size of a grain of sand

Which example gives the relative location of a place? 50 main street 33 degrees n latitude, 91degrees w longitude east of the library 1600 pennsylvania ave., washington, d.c.