Having just been notified that the PTO volition grant my request to pedigree the building of a statute of my favorite teacher, I am left with the task of selecting which type of rock I will single-valued function. I will have to take into account how climate, somatic weathering, chemical weathering, and biological weathering will affect my statue.
I have a cho chalk of many types of rocks to choose from including marble, granite, rock salt, nut, limestone, and sandstone. I sight easily eliminated rock salt and chalk because of how easily they erode. disceptation salt, when exposed to water will start weathering immediately and chalk likewise. I flowerpott use sandstone either because it easily erodes when in tactual sensation with wind and rain. Physical weathering does too much damage to these rocks.
After eliminating the in a higher place rocks, I am left with limestone, granite, and marble. I wont be adequate to use limestone either because it is very fragile when exposed to dose rain. No matter how rare it occurs, acid rain can cause a lot cracks and lads to form. Later, when water freezes in the cracks, ice wedging can cause the statue to just f whole apart. For this reason, I cannot use limestone either.
Now I am left with marble and granite.
Of these left, I will choose granite because it is harder than marble. Granite and marble are similar but since granite is pyrogenetic rock, it is harder. Being harder, or denser, has many advantages. The harder the rock is, the tougher it will be to weather away. Since the statue will be in the Butterfly Garden, it is similarly in danger of biological weathering. The plant roots all around the statue will grow into any little crevice and expand. So the harder the rock is, the longer it will...
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