They are like an effect <span>on the local and global </span>weather<span> systems on the earth</span>
Https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0ahUKEwjascq6vOLM...
You will find the information you need here. :3 Good luck!
(Says I have to cite my sources so here goes: I just copy/pasted your question into Google lol)
Calcrete or Caliche is a type of sedimentary rock often found in arid and semiarid regions. It is composed of calcium carbonate with bits of gravel, clay and silt. It is found in Australia, Kalahari Desert, Sonoran and Mojave desert. Note that caliche does not form through dissolution and reprecipitation of rainwater. Rather, it forms when water from the ground rise above through capillary action, bringing up minerals from the ground into the surface.
Answer:
Well think about the size of our world. Its pretty big and it would be really hard to map something out the size of the world. Using a scale like this 1:1000 because it shows 1 for every 1000 miles or kilometers. Or even greater units of measurement, less spaced and yet still an accurate representation. If put through the backed scaled equation, you would get the actual size jsut by multiplying the number in this case 1 or more by 1000 and you’d get the exact measurements.