### action:

Acidification
* affects animal and plant populations of lakes.
* also causes the release of potentially harmful metals
  - makes many forests vulnerable to drought, disease and harmful insects
* can have adverse affects on stream communities
  - hinder the ability of aquatic organisms to reproduce
* exacerbates coral bleaching.
* helps maintain the quality of the unused milk and reduces the incidence of diarrhea.
* impacts on ecosystem services.
* is an action
  - natural processes
* primary stressor in some regions.
* requires energy for proton pump.

### action | acidification:

Episodic acidification
* can cause sudden shifts in water chemistry.
* sudden jump in the acidity of the water.

### action:

Action research
* brand of research originated to solve problems in applied settings.
* is action and research in the same process
  - research done by teachers, for themselves
* methodology whose flexibility allows learning and responsiveness.
* systematic examination of a question arising from a teacher's practice.
* tends to be directly linked to achieving results in the classroom setting.
* type of research aimed at changing and improving educational practice.
* way to look at a problem, gather data and make recommendations.

### action:

Addition
* affects growth.
* cans have beneficial effects
* encourages growth
  - new root growth
* has different effects
  - significant effects
* increases conductivity
  - cost
  - effectiveness
  - electrical conductivity
  - intake
  - water intake
* is an increase
  - components
  - determined by the activity of telomerase
* is one of the cornerstones of math
  - functions used when calculating insulation needs in the home
  - suburbs
  - the sum, or combination, of two or more groups of things
* leads to growth.
* way to find the total or sum of two or more numbers.
+ Addition, Addition as increase: Arithmetics :: Hyperoperations
  * Addition can also mean to make bigger.

### action | addition:

Annex
* are addition
  - buildings
  - part of buildings
* is addition

Fluoridation
* cuts treatment costs and saves money.
* increases cavity-fighting protection for our citizens
  - the incidence of dental fluorosis
* is addition
  - effective in reducing cavities
* saves billions of dollars for industries with fluoride pollution problems.

### action | addition | fluoridation:

Water fluoridation
* continues to be the cornerstone of community oral disease prevention.
* contributes greatly to reducing dental caries.
* goes against the notion of consumer choice.
* helps reduce such oral health disparities.
* is an ideal way of improving dental health and controlling health care costs
  - cited as the most effective method of reaching large populations
  - endorsed by nearly every major health and safety-related organization
  - mass medication
  - relatively inexpensive in the United States
* is the ideal solution for industry's fluoride waste disposal problem
  - least expensive and most effective way to reduce tooth decay
  - most effective and inexpensive way to reduce dental decay in a community
  - safest and most cost-effective way to prevent tooth decay
* low-cost and safe way to improve dental health for people of all ages.
* plays a key role in optimal dental health.
* safe and cost-effective public health measure in preventing dental caries.

Nucleophilic addition
* is also a good reaction, though a bit more difficult than with ketones
  - one rate-limiting process
+ Ester: Functional groups
  * Esters can also do many reactions. It is very easy to change the ether part of the molecule with another similar one. It is also possible to reduce the ester to a ketone or an alcohol, which can do many different reactions. Nucleophilic addition is also a good reaction, though a bit more difficult than with ketones.