A topographical map shows elevation
Answer:
1- Option (D)
2- Option (C)
Explanation:
The rocks of oceanic crust are created by spending a huge amount of time in a water-rich environment. During the subduction process, the plates at greater depth are comprised of rocks that contain water in them. As this water reaches the mantle, the conditions of pressure and temperature forces these hydrated rocks to remove the water from them. This water then mixes up with the mantle and thereby reduces the melting point of the mantle rocks. This results in the formation of magma. These magma being lighter eventually rises upward that eventually leads to the formation of the volcanoes. This process of melting is known as the hydration-induced melting.
Thus, the hydration-induced melting process is responsible for the formation of volcanoes on the overriding plates.
Hence, the correct answers are mentioned above.
The cliff at point A is the erosional landform.
Answer:
ISCO-DUG-WUAZ
Explanation:
Seismic waves of an earthquakes is recorded first in the station closest to the earthquake. The P wave is the faster moving wave and then the S wave. The faster the time it takes the P and S waves to register in the seismographer the closer the station to the site of the earthquake. Bearing this in mind, the wave was first registered in ISCO making it closest to the earthquake site, followed by DUG and then WAUZ.
ISCO (14sec)-DUG (57sec)-WUAZ (73sec)
