Fire resistance is where the amount of time that material has withstood a standard fire exposure whereas flame spread is the speed at which a flame spread along the surface of a specific material and is considered as the difference between fire resistance and flame spread.
Fire resistance is the resistance to fire that is for a particular specified time and is under circumstances of standard heat intensity. It will not structurally fail or else allow the transition of heat and also not permit the side away from the fire so as to become hotter than a temperature that is specified well.
Flame spread is described as the surface burning characteristics enhanced by building materials. It is the most tested property of the fire performance of a material.
Firefighters should be aware of the growth and spread of a fire as they face respiratory hazards in emergency situations which include oxygen deficiency, temperature elevation, smoke as well as toxic atmospheres. This can also affect both the physical and mental effects of the firefighter and would be worse if proper respirator precautions are not followed.
This indicates that firefighters are regularly exposed to certain concentrations of hazardous materials that include carcinogenic products such as carbon monoxide, benzene, sulphur dioxide, hydrogen cyanide, aldehydes as well as particulates.
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A good way to reduce acid rain is use less fossil fuels, as they cause pollution which results in acid rain.
Option C would be correct.
Percolation is the process of liquid slowly going through a filter. For instance, just like grinded coffee beans are poured in a filter to make your hot drink, percolation means the same exact thing.
In fact, the root word in percolation is percolare meaning "to strain/go through".
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~Autumly
Answer:
They excelled at hunting animals and making complex stone tools, and their bones reveal that they were extremely muscular and strong, but led hard lives, suffering frequent injuries. There is no doubt that Neanderthals were an intelligent species, successfully adapted to their environment for over 200 millenia
Explanation:
<u>Answer:</u>
This very long molecule of DNA is called chromosome.
<u>Explanation:</u>
- Chromosome is a 'DNA molecule' that contains part or all of the genetic material of an organism.
- The 'three-dimensional genome structure' of chromosome plays a vital role in 'transcriptional regulation'.
- Prokaryotes have less sequence-based chromosome structure than eukaryotes.
- The recombination of chromosome during meiosis and successive reproduction plays a significant role in 'genetic diversity'.
- Chromosomes are normally visible under microscope during the metaphase of cell division. Chromosomes are the key elements of cell division.
