What could the relative age of two rocks tell you about them?
a. One rock is 10,000 years old, and the other is 8,000 years old.
b. One rock is older than the other.
c. They both have fossils in them.
d. One rock is closer to the surface than the other.
What would a geologist do if he/she wanted to determine the age of rock layers at a given location using relative age?
a. Find some information on the approximate age of local landforms.
b. Find the relative age of one rock at the given location.
c. Find the relative and absolute ages of all rock layers at that location.
d. Find a fossil in a sedimentary rock layer nearby.
How does folding change rock layers?
a. Folding can alter the composition of rock layers.
b. Folding can change the position in which rock layers appear.
c. Folding always moves younger rock layers to the surface.
d. Folding does not change rock layers.
Sometimes, layers of rock are overturned so frequently that the youngest rock layer may appear at the bottom, which is reverse of what is ordinarily expected.
a. True
b. False
My answers: b, b, b, a
I took the quick check and got them all right thx anonymous
your answers are all correct!
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For the question "What could the relative age of two rocks tell you about them?" the correct answer is b. One rock is older than the other. The relative age of rocks refers to the order in which they were formed, with the lower rocks being older and the higher ones being younger. By comparing the relative ages of two rocks, you can determine which rock formed first and gain insights into the chronological sequence of events that occurred. So in this case, one rock being 10,000 years old and the other being 8,000 years old indicates that the rock which is 10,000 years old formed before the one that is 8,000 years old.
For the question "What would a geologist do if he/she wanted to determine the age of rock layers at a given location using relative age?" the correct answer is c. Find the relative and absolute ages of all rock layers at that location. To determine the age of rock layers using relative age, a geologist would compare the positions and characteristics of the rock layers in order to establish their relative order of formation. They would also analyze the rock layers for any fossils they may contain, as fossils can provide additional clues about the age of the rocks. However, to determine the absolute age (in years) of the rock layers, additional methods like radiometric dating would need to be employed.
For the question "How does folding change rock layers?" the correct answer is b. Folding can change the position in which rock layers appear. When rocks undergo folding, which is a result of tectonic forces, it can cause the previously horizontal rock layers to become contorted and deformed. This can change the original position and orientation of the rock layers, making them appear in different angles and shapes. The folding can also cause the different rock layers to overlap or intersect each other, leading to the creation of folds and faults.
For the statement "Sometimes, layers of rock are overturned so frequently that the youngest rock layer may appear at the bottom, which is reverse of what is ordinarily expected," the correct answer is a. True. In some geologic settings, such as areas with intense tectonic activity or repeated folding, the layers of rock can undergo frequent overturning, leading to a reversal of the typical sequence with the youngest rock layer appearing at the bottom. In these cases, the normal stratigraphic order of rock layers can be disrupted, and geologists need to carefully analyze the structural relationships and other clues to understand the true sequence of events.