Q: The part of the rock cycle that transforms compressed rock formed from sea organism shells into a harder, denser rock is

OPTIONS:
- igneous rock becoming sedimentary rock.
- igneous rock becoming metamorphic rock.
- metamorphic rock becoming igneous rock.
- sedimentary rock becoming metamorphic rock.
A: sedimentary rock becoming metamorphic rock.
Q: After mining removes layers of rock from a hillside, new plants begin to grow in the cracks of the bare rock. The plants beginning to grow are an example of which natural process?

OPTIONS:
- secondary succession in an existing ecosystem
- new species developing in an ecosystem
- species competition in a community
- primary succession in a new habitat
A: primary succession in a new habitat
Q: A team of surveyors takes measurements of ground altitude at horizontal intervals of 1 meter over a 400 square meter area. These measurements can best be used to produce which representation of the area?

OPTIONS:
- a topographical map
- a map of wind currents
- a plate tectonic diagram
- a chart of sedimentary layers
A: a topographical map
Q: When a switch is used in an electrical circuit, the switch can

OPTIONS:
- cause the charge to build.
- increase and decrease the voltage.
- cause the current to change direction.
- stop and start the flow of current.
A:
stop and start the flow of current.