Earth is a large spherical landmass, which is divided into three major layers, known as crust, mantle, and core. The innermost layer of the Earth is the core.
<h3>What is the core?</h3><h3 />
- The core of the Earth is the innermost layer, present beneath the mantle and crust.
- The core is entirely made up of iron and nickel. The core of the Earth is also called NIFE, which symbolizes the elements present in the core, Iron (Fe) and Nickel (Ni).
- Core has a radius of approximately 1220 kilometers and is responsible for the generation of the magnetic field.
- Core also consists of the earliest history of the planet and is extremely hot, such that the temperature is close to the Sun's temperature.
Thus, the correct answer is Option D.
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Regional volcanism is associated with mountain building.
Answer: Option D
<u>Explanation:</u>
Mountain building which is also known as the orogeny is the geological process such as movement of tectonic plates and volcanic activities because of which the mountains are formed by the pressure on the earth's crust when the plates collide.
So the occurring of volcanoes in a particular region along the plate boundaries where there is some movement in the tectonic plates might result in the formation of a mountain.
The one answer that I am missing among the options, but which is the correct one is: the geography of the region ( I assume that that's what was instead of the "7" in the first option).
It was very mountainous, with valleys and islands on which people lived -meaning there was a natural separation between the different settlements.
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<u>Answer:</u>
<em>The ocean currents are always in a continuous motion in which there is ales and more chances of permanent and temporary movements.</em>
<u>Explanation:</u>
<em>Ocean current is referred as the direction of movement of the ocean water which is flowing in one of the Earth’s Ocean. </em>
The currents in the ocean are generated from the rotatory force of the earth circulation.
<em>Global climate here is referred as the long term of rising in the temperature in which earth will get heated up gradually over time.</em>
