Lava that cools so quickly that the ions do not have time to arrange themselves into crystals with definite shape will form igneous rocks with FINE GRAINED TEXTURE. Igneous rocks are those rocks formed as a result of cooling of magma or lava.
Answer:
it's D
Explanation:
Greece was isolated from itself by it's many different water bodies
Answer:
Option (D)
Explanation:
A supernova is referred to as the disastrous explosion of a massive star that produces bright light, releasing a huge amount of matter into space. For a star to form a supernova, the star must possess mass that is about 8 to 16 times more than the mass of the sun. It releases a large quantity of matter and huge amount of energy into space, increasing its brightness. This giant star undergoes an explosion because of the collapsing of its own gravitational force.
Thus, a supernova is seen to occur when the star that explodes has a mass 10 times more than that of the sun.
Hence, the correct answer is option (D).
Answer:
The most important of the six essential elements of Geography, to explain the distribution of the population in the United States, is human systems.
Human systems are all the networks of human relations that cover a geographic area. They include economic systems, which are formed by groups of humans enganging in productive activities of all sorts.
In the modern era, humans tend to live in cities, specially in developed countries like the United States. The distribution of the population of the United States, that we can see on the map, is likely the result of th concentration of such human systems in the darker areas.