Answer:
A. controlling worldwide oil prices
Explanation:
OPEC stands for The Organization of the Petroleum Exporting Countries. It is a huge entity that controls the prices of oil internationally. It has heavy influence over politics as for example, if OPEC supported Saudi Arabia and Iran was invading Saudi Arabia, it would raise oil prices heavily for Iran and its allies.
The bowl-shaped depression at
the top of a volcano is a crater. The answer is letter D. The crater is where
the vent forms and releases magma, ashes and lava during volcanic eruption.
Answer:
<u>Radiation</u>
Explanation:
Radiation is a process by which the heat energy is exchanged between the surface of earth and the atmosphere and space. This causes reflecting of light from the glaciers top as white light gives back more reflectance and similariar raises the temperature of the glaciers thus at the summit glaciers are warm.
The correct answer is - 5) At a normal fault, tensional stress causes the hanging wall block to move downward with respect to the foot wall block. Conversely, at a reverse fault, compressional stress causes the hanging wall block to move upward with respect to the foot wall block.
Both the normal faults and the reverse faults are dip-slip faults, meaning that they experience vertical movement which is inline with the dip of the fault. Both of them can be identified by the relative movement of their hanging walls and foot wall.
The normal faults have a hanging wall that is moving downwards relative to the foot wall. This kind of movement is caused by extensional tectonics, or rather by tensional stress. The faulted section of the rocks is lengthened because of this type of processes.
The reverse faults have a hanging wall that moves upward relative to the foot wall, thus the total opposite of the normal fault. This kind of movement is caused by the compressional tectonics. The faulted section of the rocks shortens under this type of processes.
