The higher into the atmosphere one goes, the lighter the air pressure. This is because the "column of air" above that area is shorter, as you are nearer to outer space. This means that the lowest pressure would most likely be found on a mountaintop, compared to the other options. This is Choice B.
Answer:
Brittle materials:
Brittle materials are those material which does not shows any indication before failure.It means that they break suddenly without showing any indication.These materials have zero ductility.
Ex :
1.Glass is the very common example for brittle material and in our house we can easily see that when ever glass fall on the floor it breaks in very small pieces.
2. Metal objects are made from metal they behave as brittle like cast iron.
3. The another familiar example in our house for brittle material is dry clay.
Ductile materials:
Ductile materials which shows a indication before fracture.It have a range ,within this range they did not fail.The ability of material to draw into wires is known as ductility of that materials.
Ex :Those object are made from carbon steel,gold,silver etc.
Elastic deformation :
To regain the original shape after removal of load is known as elastic deformation.
Ex: The familiar example of elastic deformation is rubber band ,when we apply a force on the rubber band then it goes under the deformation but after removal the load come back on the original position.
A dune<span> is a mound of </span>sand<span> formed by the wind, usually along the beach or in a desert. </span>Dunes form<span> when wind blows </span>sand<span> into a sheltered area behind an obstacle. </span>Dunes<span> grow as grains of </span>sand accumulate. Sand dunes<span> serve an important purpose by protecting inland areas from coastal water intrusion. They are able to absorb the impact and protect inland areas from high energy storms and act as a resilient barrier to the destructive forces of wind and waves.</span>
Pretty sure it's outer core, lower mantle because the inner core is solid iron
Most of the world's known oil reserves are located near the Persian Gulf
