In England, the trunks of trees were blackened for many years by soot from factories. After passage of the Clean Air Act in 1959, the trunks became lighter. Scientists in England studied the peppered moth (Biston betularia) which rests on these trees and is preyed upon by birds. They noticed the following change in frequencies over a period of time.

Charles Darwin´s Origin of Species

Explanation:

The way the peppered moth changed (or evolutionised) is in line with

Darwin´s origen of species theory. As its camouflage is vital for surviving, the peppered moth species turned out to be darker when the trees were blackened by soot and lighter after the Clean Air Act in 1959. This made them more difficult to be spotted by the birds and guaranteed them the survival of the best adapted (camouflaged) species.

invention of the washing machine

in the past, people used sticks and stones or scrub boards to clean their clothing. as it was sweaty, backbreaking work, we owe a world of to james king because he created the model for the modern washing machine in 1851. the most important issue was that this machine cleaned clothes while a person cranked the handle. doing this made people who used it develop strong muscles in their arms. later, in 1908, alva j. fisher created an electric washing machine named thor. this one was not the first automatic washing machine. however, it was one of the most popular models at the time.

answer: a lonely woodcutter comes by and decides to chop down the tree, while chopping, connor murphy took a nap next to the tree. waking up from the sound of chopping, he notices the tree falling on him. unable to escape, connor get hit and dies. this was the last of him.