On the medieval world-maps it was represented only the part of the world known as the 'old world', which is consisted of Europe, Asia and Africa. Before the big discoveries, people living in this continents had knowledge only of this part of the world, while South and North America, Australia and Antarctica where still unknown to them, thus they are missing in the world-maps of this period.
Carbonate rocks, like limestone <span><span>dolomite's, and chalk on earth</span> </span>
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How does the use of physical resources impact the environment?
In short, raw material extraction and processing always impact on the environment, resulting as they do in soil degradation, water shortages, biodiversity loss, damage to ecosystem functions and global warming exacerbation. ... Improper product use provokes noxious emissions that can end up in our water, soil and air.
What are the resources of environment?
Food from plants and animals, wood for cooking, heating, and building, metals, coal , and oil are all environmental resources. Clean land, air, and water are environmental resources, as are the abilities of land, air, and water to absorb society's waste products.
Hope this helps.
D the solar system is much smaller than the Milky Way galaxy