Answer:
a 1.7 million year history of dinosaurs off the Mississippi River delta
Explanation:
Sedimentary rock can change into metamorphic<span> rock or into </span>igneous<span> rock.</span>Metamorphic<span> rock can change into </span>igneous<span> or sedimentary rock. </span>Igneous rock forms when magma cools and makes crystals. Magma is a hot liquid made of melted<span> magma.</span>
Answer:
C
Explanation:
Roads can vary in elevation, since a road is essentially any path to walk on.
Hills have varying elevations - they are higher at certain points.
Rivers can flow downhill and aren't always at equal elevation.
Contour lines on a topographical map connect points of equal elevation. If you were to follow a contour line while walking, the elevation would remain constant.
