Answer:
Yersinia pestis is known as the causative agent of plague. Plague is a disease which has vectors such as rodents and fleas. They are transmitted to man when the fleas who have the plague bite man.
It is caused by bacteria and can be transmitted through saliva droplets which makes ships the place Yersinia pestis would more likely diffuse from Kaffa. The ship is usually packed with lots of people from different regions and parts of the world on trading businesses.
The correct option is: "Londoners developed breathing problems due to the smog. - Coal mines polluted the surrounding environment."
Coal was the main source of energy for the first Industrial Revolution, fueled the steam engine and was crucial in the steel industry. Until the industrial revolution, the most used energy came from wood and charcoal. Its consumption was producing a huge deforestation.
Although the operation of the mines (iron beams to support the galleries, methods of ventilation, methods to extract the water, use of trolleys on rails) was greatly improved, in order to increase the productivity, the work in them became something very dangerous and very painful.
The Industrial Revolution in the mid-eighteenth century caused many people to move from the villages to London, shooting the smog during the winters. Its high point came in the winter of 1952. London was paralyzed for five days by smog.
Answer:
Texas claimed the Rio Grande as its southern boundary, while Mexico insisted that the Nueces River was the boundary.
Opium was<span> first introduced to </span>China by Turkish and Arab traders in the late 6th century.
<span>
Levels of </span>opium<span>addiction grew so high that it began to </span>affect<span> the imperial
and here is a funny joke becuase I dont know why
what do you call a fish with out eyes
fsh, lol corny</span>
