What do we still need to know in order to determine why the two rock formations have such similar minerals?

Answer and Explanation:

Rock is defined as the collection of one or more minerals. Granite, sedimentary rock, igneous rock, metamorphic rock and limestone are the types of rock. Granite is the most common type of rock. Granite is made up of four minerals such as hornblende, feldspar, quartz and mica. Granite breaks down to form sedimentary rocks. Igneous rock begins as magma. The lava and magma harden to form igneous rock. Metamorphic rocks are made from pressure.  Rocks are made of one or more minerals, which are cooled and melted together, cemented together, or heated and squeezed together. The mineral occurs naturally and is made of crystals. The earth’s crust is made of rocks. Most rocks are covered by soil. Soil contains the small pieces of rocks.  The two rocks have similar composition but different texture. Rocks are formed in different ways. The rocks can be changed from one form to another.

its the cell wall and the they are unique to plant

the answer is 1. photosynthesis. glad to