### science | medicine | analgesic:

Nitrous oxide
* are a potent greenhouse gas.
* byproduct of burning fossil fuels such as oil, coal, gas, and timber
  - fossil fuel burning and denitrification
* can also play a role in depleting the stratospheric ozone layer
  - cause fluid in the lungs
* causes irritation to the lungs, causing bronchitis and pneumonia
  - numbness and giddiness, sometimes with a sensation of floating
* colorless, non-flammable gas
  - odorless gas and slightly dissolves in water
* colourless, non-toxic gas with a faint, sweet odour.
* combined with oxygen is used as an anesthetic for some types of surgery.
* comes from fertilizer usage, crops and manure
  - industrial sources and decaying plants
  - vehicles, deforestation and agriculture
* cuts off the flow of oxygen to the brain.
* depresses the H-reflex in children with cerebral palsy.
* flow off.
* greenhouse gas and an ozone destroyer
  - implicated in both global warming and ozone destruction
  - gas, meaning it contributes to global warming
* has another effect that improves performance even more
  - only minor effects on respiration
  - other effects
* helps even the very nervous feel at ease.
* induces a state of behavioral disinhibition, analgesia, and euphoria.
* is added from nitrogen fertilizers used in agriculture.
* is an analgesic
  - example
  - important greenhouse gas which is increasing in the atmosphere
  - odorless and non-explosive gas
  - another powerful greenhouse gas causing climate change
* is broken down in the atmosphere by chemical reactions driven by sunlight
  - by chemical reactions that involve sunlight
  - chemical compounds
* is emitted by bacteria in soils and oceans, and is thus a part of Earth's atmosphere
  - from fertilizers and some industrial sources
  - when transportation fuels are burned
  - gases
  - greenhouse gas which causes the global warming
  - infused into the abdominal cavity
  - inorganic compounds
* is measured by a separate electron capture detector
  - electron-capture detector
  - one of the gases responsible for the greenhouse effect
  - oxide
* is produced by bacteria breaking down nitrogen in the soil
  - various agricultural and industrial practices
  - released when bacteria feeds on animal waste
* is released when chemical fertilizer is used in agriculture
  - fertilizers and manure are used in agriculture
  - something different
* is the main naturally occurring regulator of stratospheric ozone
  - most alarming of the east lobe's wealth of nitrogen-based chemicals
* is used as a sweetening agent in whipped cream
  - an anesthetic agent in medical, dental, and veterinary operatories
* is used by dentists as an anesthetic
  - doctors and dentists to reduce pain
  - for light anesthesia in minor surgical procedures and in dentistry
  - frequently because it has such a high degree of safety
  - in high performance cars to increase the power of their engines
  - medically as an anesthetic
  - well known for auditory flanging
* long-lived gas because it is inert in the troposphere.
* major greenhouse gas.
* perfectly safe and simple drug to use.
* principle component of photochemical smog.
* produces either no change or only a slight increase in blood pressure.
* reacts with ozone in the stratosphere.
* safe anesthetic agent.
* sweet-smelling gas that is administered along with oxygen.
* typical waste stream from adipic acid production.
* very safe and popular agent still utilized by dentists today.
* water-soluble chemical that plants use as food.
* week anesthetic.
+ Nitrous oxide, Uses: Nitrogen compounds :: Greenhouse gases
  * Nitrous oxide is used by doctors and dentists to reduce pain. In the body, it makes people feel happy. It is sometimes used 'only' to feel happy, like an illegal drug.

Opiate analgesic
* make the gut move slower.
* require a prescription.