Answer:
Salinity means the degree of dissolved salt content in water
Explanation:
In a world without global warming, water in seas or in oceans is salty or saline due to the influx or of rivers and various other sources that bring the water and other geomaterial from the landscapes like soils and various other clays and mud deposits. On an average the sea water consists of about 35 (ppt) part per thousand. mostly of Na and CL ions. More saline the water is more will be its density and less saline water is less is its density thus, freshwater has least density, as compared to the red sea and other sea with more than 37 ppt density. Rainfall is also an important factor in reducing the amount of saltiness.
Answer:
A. Volcanic activity
Explanation:
The volcanic activity is the process that creates the new minerals on the planet. In this process, the magma from the mantle rises toward the surface. Some magma solidifies inside the crust, while some on the surface, though then its called lava. Be it inside the crust, or on the surface, it is always a large amount of magma or lava that comes to a certain area, causing the formation of certain minerals, and they are in high concentration. The magma and the lava manage to cover large areas, either pushing aside old rocks, or covering them with thick layers, thus resulting in monotonous high concentrated certain types of minerals in some areas.
