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Salsk061 [2.6K]
3 years ago
14

Name the 4 types of of coal and their average carbon value

Biology
2 answers:
xxTIMURxx [149]3 years ago
4 0

Answer:

Anthracite: The highest rank of coal. It is a hard, brittle, and black lustrous coal, often referred to as hard coal, containing a high percentage of fixed carbon and a low percentage of volatile matter.

Bituminous: Bituminous coal is a middle rank coal between sub-bituminous and anthracite. Bituminous usually has a high heating (Btu) value and is the most common type of coal used in electricity generation in the United States. Bituminous coal appears shiny and smooth when you first see it, but look closer and you may see it has layers.

Sub-bituminous: Sub-bituminous coal is black in color and dull (not shiny), and has a higher heating value than lignite.

Lignite: Lignite coal, aka brown coal, is the lowest grade coal with the least concentration of carbon.

lyudmila [28]3 years ago
4 0

Answer:

The four types of coal are peat, lignite, bituminous, and anthracite.

Explanation:

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Which statement best describes the relegation ship between proteins and nucleus acids
Novosadov [1.4K]

Answer:

The central dogma of molecular biology best describes the relationship between proteins and nucleic acid.

Explanation:

Nucleic acid such as DNA is the repository of genetic information in most organism.

          The genetic information stored in DNA is Transferred to RNA by transcription which deals with the the production of mRNA from DNA.

        The mRNA then undergo translation to transfer its own own genetic information in form of codons to specify amino acids of a protein molecule.

        Thus the Central dogma of molecular biology relates proteins and nucleic acids.

   

4 0
3 years ago
Who is most likely to perform a forensic autopsy?
babymother [125]

Answer:

The forensic autopsy is preformed by "Forensic pathologist".

Explanation:

The forensic pathologist would perform a forensic autopsy, Forensic pathologist will focus on the cause behind the death by studying the body or the corpse. Most probably they do the postmortem examination. The forensic pathologist is also a medical doctor, who must have completed the training in anatomical pathology with specialization in forensic pathology. The forensic pathologist are basically there to find the cause and also the manner of death. They are trained for performing autopsy, helps in evaluation of historical and law enforcement investigative information, documentation in sexual assault, helps in collection of the medical evidence.

3 0
3 years ago
Two European men and two Polynesian women settled on a previously uninhabited tropical island. All four of the settlers have bro
kati45 [8]

Answer:

Two European men and two Polynesian women settled on a previously uninhabited tropical island. All four of the settlers have brown eyes, a dominant trait, but one of the Europeans is heterozygous and carries the recessive gene for blue eyes.  No new settlers arrive,and nobody leaves the island.After a few generations,the percentage of blue-eyed individuals increases from the original zero to 25 percent.This is probably due to which of the following factors?

genetic drift

Explanation:

Genetic drift entails when there are changes in the gene frequency which occur in a gene that is existing. From the analogy above, it is a known fact that only gneetic drift could allow such to happen as mutation will only occur with a sudden change of gene which is not the case described above

3 0
3 years ago
Which signs would the nurse observe in a patient with alzheimer disease? select all that apply?
VikaD [51]
<span>Since you are missing the options, I'm going to enumerate some possible answers:
- </span><span>memory loss
</span><span>- Wandering
</span><span>- Unpredictable behavior
</span><span>- inability to process visual sensory information
</span><span>- less concentration and attention
- Delusions and hallucinations
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- Apraxia (can't make certain motor movements)
- loss of </span><span><span>Orientation</span>
- loss of language
</span>





6 0
3 years ago
Science-what is the correct arrange of this E,M,A,I,H,T,P,C,M,E,R​
Mariana [72]

Answer:

Champetre, imprecate, metameric, Hemiptera ??

Explanation: Choose I'm out of ideas xD

4 0
3 years ago
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