I go with Ice Core examples since early sociteties probably didn't have Written Records or maps, and tree rings would only tell if they were fossilized. I hope this helped :)
I couldn't find a diagram but was able to find the terms erosion and deposition and using these terms, first there is erosion or the wearing away away of the rock in place be it pre-existing igneous, sedimentary or metamorphic rock, then transportation often to a delta or flood-plain or basin, and then deposition of sand silt and clay and then consolidation into rock and diagenesis which involves compaction and the removal of water.
Theory of natural selection by Charles Darwin explains the moth appearance in England. The theory of genetics describes this as a mere shift of trait due to environmental factors.
<h3><u>Explanation:</u></h3>
Peppered moths are the moths found in England from a long time ago. The environment before the industrial revolution was pure and pollution free, which led to the growth of the white variety of moths as they were able to camouflage better with the bark of the trees from their hunters. The white trait were the parents, and fertilization between the two recessive traits gave rise to the recessive traits only.
But with the industrial revolution, the pollution increased to a huge extent, leading to deposition of smokes and soot on trees bark where white variety of the white moths got easily recognizable. This led to the black moths which now can camouflage better. Thus the nature selected black variety over white variety for better survival, and the white variety reduced dramatically.
Answer:
Both? I think but I don't know
Answer:
unfortunately, if the snail is deep inside its shell it is most likely ill.