because it's the main highway of the ancient world.
Igneous rocks are formed as magma solidifies on the earth surface.
The process that might have formed this rock is:
A. melting underground, violent volcanic eruption, and solidification above ground
<h3>Igneous Rocks</h3>
Igneous rocks are known to be rocks that are formed when the magma melts underground and rises up to the earth surface via volcanic eruptions.
When they rise to the earth surface, they cool and solidify. This process will then result to the production of crystals.
Intrusive and extrusive rocks are formed in this process.
Learn more about igneous rocks on brainly.com/question/20538428
<span>CLEAR-CUTTING: CLEAR CUTTING IS THE REMOVAL OF ALL TREES IN ONE OPERATION FOR HARVESTNG PURPOSE. IT IS ECONOMICALLY PROFITABLE METHOD OF LOGGING. IT GIVES SIDE EFFECTS SUCH AS LOSS OF TOP SOIL.
ACID RAIN : IT IS CAUSED BY EMISSIONS OF SULFUR-DI-OXIDE AND NITROGEN OXIDE WHICH REACT WITH WATER MOLECULES IN THE ATMOSPHERE TO PRODUCE ACIDS. SIGNIFICANCE OF ACID RAIN IS SENSITIVITY OF AGRICULTURAL LAND TO LONG-TERM ACID PRECIPITATION.
SMOG : IT IS A MIXTURE OF SOLID AND LIQUID FOG. IT IS ALSO CALLED PHOTO CHEMICAL SMOG. FOG POLLUTED WITH SMOKE AND PARTICULATES ESPECIALLY FROM BURNING COAL.
EUTROPHICATION : SEWAGE AND WASTE WATERS FROM INDUSTRIES AND AGRICULTURE ARE RICH IN ORGANIC AND INORGANIC NUTRIENTS CONTAINING PHOSPHOROUS AND NITROGEN TO SOME EXTENT.</span>
