Weathering of rocks on Earth's surface leads to the formation of rock.
A. metamorphic
B. tectonic
C. igneous
D. sedimentary
Reset Selection

20 the compound al(nh3)2 has atoms of nitrogen.

This is the main structural axis of the plant that supports leaves, flowers and fruits; transports fluids; stores nutrients and produces new tissue.

When ash and dust begin to settle on the ground, they eventually become compacted by