Which of the following best describes what led to london’s “killer fog” in 1952?
a)
pollution from the air contaminated the water supply which is what killed people.
b)
unprecedented high pollution from factories occured and killed thousands.
c)
poor city design led to faulty ventilation in houses.
d)
soot from forest and wildfires in the surrounding areas blew over the city.
e)
millions of coal fires and stagnant air caused toxic fumes to build up in the air.

E

Explanation:

Londoners burn coal in their home to keep warm while  the industries use coal to power their factories. This emits pollutants into the atmosphere. In most occasions these pollutants are able to disperse into the atmosphere and get carried by wind systems. However, in 1952 an anticyclone in the region resulted in stagnation of a cold air mass around London for about 5 days. This caused the pollutants to accumulate in the air to form a dangerous smog. This caused respiratory challenges to the residents and it is reported that more the 4,000 died as a result.

d concave shape of wave rock

explanation:

the concave shape of wave rock is a very good evidence that supports the evolution of earth due to chemical weathering. if we talk about structure of   wave rock, studies have estimated that it is around 2.7 billion years old. it also serves as the foundation of evidence that it was the place where australian continent began to form.

how the structure of wave rock was created?

studies suggest that structure of wave rock was created when the surrounded area was started to weather due to which deposition of material started on the part of land which now contains wave rock.

the structure of wave rock is considered to be one of the best-known landforms in australia. at the height of around 15 cm, there can be found flared slopes which formulate the margins of hyden rock. it is now assumed by geologists that wave rock was created by subsurface water-induced weathering and not by glaciers, waves or wind.

due to deposition of material over the period of long time, the wave rock became tougher and tougher due to weathering from surrounding terrain. this makes it a physical evidence that supports   the evolution of earth due to chemical weathering.

hope it !

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