Answer:
1 ) D. oxidation processes results in the reddish orange coating metal (rust).
2 ) D. sinkhole is formed by the collapse of caves .
3 ) The largest area of karst in the United States is included in C. Florida
Explanation:
1 ) Oxidation -
Oxidation is the process that causes the metal to rust , in presence of moist air . This weathering process is also useful in the cave formation
2) Sinkhole -
Sinkhole is a hole in the ground which is formed when both rocks and soil are removed by flowing water .
3) Florida -
Florida includes the largest area of karst in the United States .
Answer:
c) A subduction boundary
Explanation:
The subduction zones occur at places where two plates form a convergent plate boundary, and one of the plates is subducting below the other plate. As one of the plate is moving below the other plate, there's lot of stress and adjustments going in the crust, resulting in numerous cracks all along the plate boundary. The magma from the astenosphere manages to get up and comes out on the surface. Some of the magma will not be able to reach out of the water, while some will be able to, and the ones that manage to get above the water are creating volcanic islands. As this is happening all along the boundary, there will be a chain of lot of volcanic islands, but also volcanoes rising on the land as well, which will create volcanic mountain ranges as well. We can see this perfectly well at the ''Ring of Fire'', as we have lot of volcanic islands, and lot of volcanic mountain ranges in close proximity to the subduction zones.
The Arctic ice cap floats on top of the Arctic Ocean. The correct answer is C.
The most recent continental ice sheet to cover New England was the Laurentide, which formed during the late Wisconsinan glacial stage.
