It is limited becuase of their amount of arable land
Answer:
The rocks are comprised of cracks and fractures in between the sediments and mineral grains that have the capacity to store fluid in them. This fluid is generally the water that contains various types of dissolved ions. These fluids in the rocks are very much important because the chemical reactions that take place include the change in mineral from one type to another new type. This can highly increase the amount of dissolved ions that are dissolved and transported by the water. This alteration of rock that occurs chemically due to these fluid refers to the process which is commonly known as the metasomatism. Whereas, the rock alters mineralogically due to the increasing temperature and pressure condition, that changes the grade of rocks.
This is how metamorphism alters the rock chemically in comparison to mineralogically.
<h3>I hope it's helpful for you ✌️✌️✌️✌️❤️✌️❤️</h3>
Answer:
<u>Iron </u>and <u>Nickel</u>
<u>core</u>
<u>Iron and Nickel</u>
Explanation:
Two of the most popular magnetic chemicals in the world are iron and nickel.
We can now match these metals with the description given in the question to check if they perfectly fit in the blanks.
The densities of iron and nickel are 7874kg/m3 and 8900kg/m3 respectively. To put this into perspective, the density of aluminium is only 2700kg/m3. This means that iron and nickel are really dense solid materials. These materials are strong enough to make the core of the earth.
Because these materials are also magnetic and strong, we can say that they are the materials that form the solid core of the earth's structure.
Answer:
The universe is expanding.
Explanation:
Following the theory that the universe was originated from a single heavily compressed and super hot point, and quickly expanded itself to what we see today, we can assume that the universe is still expanding.
According to the big bang theory, the remnants of that explosion still cause the planets and elements in the universe to move farther from one another, allowing the universe to continue its expansion. This expansion has become slower and slower over billion of years, and the scientific community doesn't know for sure if the expansion will go on forever, or if it will have an end.
