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Pavlova-9 [17]
2 years ago
9

Why is radiometric dating of Carbon not a useful means to determine the age of the earth? What should we use instead of Carbon?

Biology
1 answer:
noname [10]2 years ago
5 0

Answer:

Geologists do not use carbon-based radiometric dating to determine the age of rocks. Carbon dating only works for objects that are younger than about 50,000 years, and most rocks of interest are older than that

Explanation:

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How might the production of antibiotics and odours have evolved?​
dimulka [17.4K]

Answer:

Antibiotic resistance evolves naturally via natural selection through random mutation, but it could also be engineered by applying an evolutionary stress on a population. Once such a gene is generated, bacteria can then transfer the genetic information in a horizontal fashion (between individuals) by plasmid exchange

7 0
3 years ago
NOT BIOLOGY ITS PHYSICAL SCIENCE how are the allotropes of carbon similar and how are they different?
Rashid [163]

Allotropes of carbon includes substances such as graphite, diamond or buckminsterfullerene.



They’re all similar in the thing that they’re all made out of carbon only.


However, their structure is different, such as graphite has a layer structure, diamond has a tetrahedral structure, and buckminsterfullerene has a spherical structure.  



Since they have different structures, they have different physical properties too. For example, diamond is hard because all the carbon atoms in the structure is held together by strong covalent bonds, while graphite are graphene layers that are held by weak intermolecular forces which makes the layers slide over each other easily thus making graphite soft.

7 0
3 years ago
The ancient Egyptians used the stars to _____.
Savatey [412]

The ancient Egyptians used the stars to tell when a flood was going to happen. Every summer a flood would happen but this also happened when the bright star Sirius rose before the sun.

Hope that helped ^^  

7 0
3 years ago
What are some pros and cons of biotechnology medicine
netineya [11]

Answer: pros = high quality foods, more effecient farming, effective measure to reduce the stravation problem, products will have a longer shelf-life

cons= food exports may shrink, spread of plant diseases, health problems related to GMOS

Explanation: look it up and you will find more pros and cons!

8 0
3 years ago
Transcribe the following (DNA ⇒ mRNA);<br><br> GCG TAT GGC
damaskus [11]

Answer:

CGC AUA CCG - RNA

CGC ATA CCG - DNA

Explanation:

Uracyl (U) is present in RNA instead of Thymine (T)

Also opposite RNA/DNA molecules pair with each other.

Adenine pairs with Uracyl (RNA)/Thymine (DNA)

Cytosine pairs with Guanine (both RNA & DNA)

8 0
2 years ago
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