Please help :( this is for science.

Aside from human impact, which of the following causes less water vapor production over a small area? (2 pderivartin

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?

Pegmatites are igneous rocks in which the individual minerals are very large. typically, the minerals are all light-colored quartz, feldspar and muscovite. if you were given a black and white photograph of a pegmatite in a quarry (where the rock has been blasted and broken), what physical properties could you use to identify those three minerals in this hypothetical photo? describe each mineral and the specific diagnostic properties. be specific.