Answer: Floors.
Usually the bottom of a main valley is broad independent of the U or V shape. It typically ranges from about one to ten kilometers in width and is commonly filled with mountain sediments. The shape of the floor can be flat or terraced.
Answer:
When an object moves toward Earth, the light that it is giving off is seen in shorter wavelengths. This causes a shift in the object's spectrum towards violet. The amount of shift in an object's spectrum is determined by how fast the object is moving. All of the distant galaxies have tremendous red shifts.
Explanation:
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A Bay is a wide-mouthed body of water close to shore. An example of a Bay is the Mobile Bay in Mobile, Alabama.
Answer:
Volcanic bomb
Explanation:
Volcanic bombs are the extrusive igneous rocks that are produced when the magma erupts on the surface with greater force. These are larger in size, they have a diameter of more than 64 mm. The shape of this volcanic bombs resembles a teardrop, which is shaped during its time of eruption as it is on the flight. During the time of the eruption, these rocks are viscous in nature and it cools down subsequently, it becomes hard and solid.
Thus, the correct answer is a volcanic bomb.