Ultramafic rocks contain and are commonly found in . View Available Hint(s) Ultramafic rocks contain and are commonly found in . potassium feldspar; extrusive settings quartz; mantle plagioclase feldspar; extrusive settings amphiboles; intrusive settings olivine; mantle

Ultramafic rocks contain olivine and are commonly found in mantle.

Explanation:

Ultramafic rocks are a type of ignea rock that are found in the mantle. These rocks have a very low silica content, but have olivine and a high iron content. They are also low in potassium and sodium. The mantle is basically composed of this type of rocks, but they can be seen on the surface in the form of Ophiolitic complexes.

i would expect light rain in pittsburgh throughout the following 24 to 48 hours. the lower/falling weights in urban areas toward the west demonstrate that a low weight framework is moving from west to east toward pittsburgh. low weight frameworks are ordinarily connected with precipitation. the way that you don't see a major drop in temperature in the more western urban areas demonstrates the low weight framework is moving with a warm front, so just light rain would be normal. substantial downpours or progressively vicious climate is just typically connected with chilly fronts, where the warm air is pushed up and over a cool front quickly. this quickly rising air (convection) is what gives you heavier torrential downpours, and other conceivably serious weather conditions.