### crystal | ice:

Frost
* Most frost has elements
  - many elements
  - suppresses growth
* Most frosts are radiation frosts that occur during a cool night after a clear, fine day
  - involve cooling by radiation
* Some frost affects trees.
* are common at night and roads can get icy
  - fairly common in the spring and fall
* are rare and never severe
  - snow has fallen only once in the past century
  - in the north, and unknown in the south, and snow never falls
  - uncommon and usually mild when they occur
* begins by settling in low areas because cold air is heavier than warm air.
* can and do occur during any month
  - happen in the high country during every month of the year
* cause less problems in sites with good air drainage.
* covers windows.
* damages foliage
  - leaves
  - plantain plants
  - seedlings
  - shoots
  - trunks
* follow flowering too quickly to allow complete seed development and maturation.
* is books
  - cold weather
  - freezes
  - fresh water
* is located in freezers
  - ground
  - open air
* kills basils
  - blossoms
  - buds
  - develop flower buds
  - dill
  - flowers
  - green plants
  - host plants
  - pepper plants
  - spring flowers
* occur occasionally in winter
  - on still, clear nights
* occurs during northern winter
  - on tokens which are struck when the dies being used are new
  - throughout the biome, and summer and winter are distinct seasons
* play no part in fall colors.
* reduces production.
* tends to inhibit the production of anthocyanin, a pigment producing various shades of red.

### crystal | ice | frost:

Autumn frost
* Most autumn frost kills flower buds
* kills buds
  - develop flower buds

Ground frost
* is what makes mud season muddy.
* occur every month, and snow is frequent.

Hard frost
* are rare, but do occur.
* damages leaves
* is possible almost every night of the year.
* sign of south wind and rain.

Late frost
* can damage the flowers.
* kills flowers
+ Camellia, Cultivation and uses: Theaceae :: Ericales
  * They are highly valued in Japan and elsewhere for their very early flowering, often among the first flowers to appear in the late winter. Late frosts can damage the flowers.

Severe frost
* More severe frosts kill growing shoots and cause severe fruit damage and fruit drop.
* can injure blossoms and young developing berries.

Spring frost
* can eliminate or reduce fruit-set
  - injure newly emerging leaves and succulent stems
* tend to linger on, which shortens the growing season.

### crystal | ice:

Gasoline engine
* Some gasoline engines are part of ambulances
  - automobiles
  - cars
  - taxis
  - require more oxygen than a venturi section can provide
  - serve as outboard motors to power small boats
* are good for rapid acceleration, as used in automobiles
  - part of cars
* compress both air and fuel within the cylinders.
* excel at traveling long distances at highway speeds.
* have many conveniences over nitro-powered engines.
* ignite the fuel-air mixture with a spark from the spark plug.
* intake both air and fuel into cylinders.
* is ICE
* produce dangerous levels of carbon monoxide.
* provide power, but they also produce pollution and consume a nonrenewable resource.