What is Dirt?
A: Dirt is an unclean matter, especially when in contact with a person's
clothes, skin, or possessions.
In such cases, they are said to become what?
A: Dirty.
What are common types of dirt?
A: Debris, dust, filth, grime, and soil.
What is debris?
A: Scattered pieces of waste or remains.
What is dust?
A: A general powder of organic or mineral matter.
What is filth?
A: Foul matter such as excrement.
What is grime?
A: A black, ingrained dust such as soot.
What is Soil?
A: The mix of clay, sand, and humus which lies on top of bedrock.
The term 'soil' may be used to refer to what?
A: Unwanted substances or dirt that are deposited onto surfaces such as
clothing.
When things are dirty, they are usually cleaned with
what?
A: Solutions like hard surface cleaner and other chemical solutions.
In a commercial setting, a dirty appearance gives what?
A: A bad impression.
The dirt in such cases may be classified as what?
A: Temporary, permanent, and deliberate.
Temporary dirt is what?
A: Streaks and detritus that may be removed by ordinary daily cleaning.
What is permanent dirt?
A: Permanent dirt is ingrained stains or physical damage to an object, which
requires major renovation to remove.
What is deliberate dirt?
A: Dirt that results from design decisions such as decor in dirty orange or
grunge styling.
As cities developed, arrangements were made for the
disposal of what?
A: Trash through the use of waste management services.
In the United Kingdom, the Public Health Act 1875
required households to do what?
A: To place their refuse into a container that could be moved so that it
could be carted away.
This was the first legal creation of what?
A: The dustbin.
Modern society is now thought to be more what?
A: Hygienic.
Lack of contact with microorganisms in dirt when
growing up is hypothesized to be the cause of what?
A: The epidemic of allergies such as asthma.
The human immune system requires activation and
exercise in order to what?
A: To function properly and exposure to dirt may achieve this.
For example, the presence of staphylococcus bacteria on
the surface of the skin does what?
A: Regulates the inflammation which results from injury.
Even when no visible dirt is present, contamination by
microorganisms, especially pathogens, can still cause an object or location
to be considered what?
A: Dirty.
Computer keyboards are especially dirty as they contain
on average 70 times more microbes than what?
A: A lavatory seat.
Who may eat dirt?
A: People and animals
This is thought to be caused by what?
A: Mineral deficiency and the condition is commonly seen in pregnant women.
People may become obsessed by dirt and engage in
fantasies and compulsive behavior about it, such as what?
A: Making and consuming mud pies and pastries.
