The faults in which the hanging wall moves down relative to the footwall is called normal fault.
Explanation:
There are several types of faults based on their characteristics. One of them is the normal fault, or normal dip-slip fault. The main characteristic of this fault is that its hanging wall moves down relative to the footwall, while the footwall tends to move up relative to the hanging wall. The force that creates this type of faults is the vertical compression as the crust of Earth is lengthening.
These faults can be found all over the world, and they are actually the most common type of faults.
The normal dip-slip faults are bounding big portion of the mountains, as well as rift valleys.
As these faults progress with their formation, with the footwall going up, and the hanging wall going down, the footwall becomes a hill or a mountain, while the hanging wall becomes a valley.
The normal dip-slip faults can be found at all types of tectonic plate boundaries.
The melting of the sea ice and rise in global temperature are having a profound impact on the distribution of land and water ration of the earth as much of the land is concentrated in the northern hemispheres and the rest of the areas are oceanic waters.
The presence of warm global temperature in the seas and continue expansion of the bottoms are thus spading this effect as a rise in 1 to 3 degrees caused a severe rise in the oceanic basins and this cause more salinity in the rivers and an increase in the global cooling staking over the oceans.
The population of freshwater and marine water is badly affected many species of corals have already died and a catastrophic bleaching has occurred on the western coast of Australia. Thus it poses a severe threat to the marine biology and ecology of the pant is due impacted by this.
More and more species are getting extinct and habits are getting lost and the planet is getting more heated and drastic release of temperature is causing more in tectonic movement in the polar areas.
