That is because metamorphic rock is formed by parent rocks that are either sedimentary rock or igneous rocks and we can use the former rock type to distinguish the type of metamorphic rock, marble was igneous rock exposed to high pressure or temperature.
While the other two type of rocks are formed initially by sedimentation and volcanic movements and has no parent rocks.
Answer:
Overlay is a GIS operation that superimposes multiple data sets (representing different themes) together for the purpose of identifying relationships between them.[2]. An overlay creates a composite map by combining the geometry and attributes of the input data sets. Tools are available in most GIS software for overlaying both Vector or raster data.
Explanation:
Before the use of computers, a similar effect was develioped by Ian McHarg and others by drawing maps of the same area at the same scale on clear plastic and actually laying them on top of each other.
B) Materials in Solution is NOT a process of a stream load
Streams must start somewhere. Streams are formed by having
sufficient water supply. The supply comes from rainfall and
underground reservoirs. The area that initiates the stream
supply is called the headwaters. Many times headwaters start
in the high elevations. As the water moves down through the
mountains, the stream’s pathway is formed. As streams evolve, the path of the stream starts to curve. The
curving of a stream channel is known as a meander. As meanders
develop, they become broader and larger. Eventually,
there are enough material deposits to form a blockage of two
meanders. This development causes the formation of an
oxbow lake.
