Fixation (obsession, compulsion, unhealthy preoccupation): He was doing fine until he developed this fixation with food colors; now he'll only eat food that is colored red.
Fixation (histology): The laboratory staff are working on fixation of the latest batch of tissue samples.
Fixation (developmental halt): Her fixation is currently at the three-year-old stage.
Fixation (fastening in position): If we can achieve fixation of the support beams in their current orientation, the roof will remain stable indefinitely.
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Nitrogen fixation,Denitrification and nitrification
it is The ability to fix nitrogen is found only in certain bacteria and archaea.
The air is about 80% nitrogen- but cannot be used by plants for food. Nitrogen fixing bacteria transform nitrogen in the air to nitrogen in the soil that plants CAN use- resulting in greatly improved plant growth, and more fertile soil.
An example is a noun which means a demonstrative case. The word example can be used in the following possible sentences:Eating fruit is an example of how I try to be healthy.This ancient pot is an example of how skilled the workers of the time were.These three sentences each give an example of how to use a word.
First of all, earth got hit by a mars sized rock called thiea. This gave us the moon which changed our atmosphere. Besides, the earth didn't have an atmosphere before thiea hit it.