Contour lines determine the steepness of the land by how close they are together. Generally, contour lines rise to a particular scale (e.g. a line for every ten metres), therefore, if the contour lines are closer together then the height of that particular area has risen more steeply than if the contour lines are further apart where the steepness has increased more gradually.
One reason that rock layers are not horizontal are because of erosion and it also depends we’re you find the rock layer
Answer:
The true statement is - Sympatric speciation only occurs in areas where there is local variation in environmental resources
Explanation:
- Sympatric speciation means the evolution of new species from an ancestor species which are occupying in the same area and no geographical barrier takes place.
- Overlapping of ranges takes place to the organism and old and new species are living i the same geographical region.
- A dam diving a fish population could lead to allopatric speciation where geographical barrier causes formation of new species which are completely different from their ancestor species.
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Fault rupturing by the earthquake is largely governed by the Elastic rebound theory. In geology, the elastic rebound theory is an explanation of how energy is released during an earthquake. It explains that as rocks on opposite side of the fault are subjected to some force and shift.
They gather energy and deform slowly unless their internal strength increases causing a sudden movement occurs along the fault. This results in the releasing of the accumulated energy and rocks move back to their original but unreformed shape.
