Answer: Option B) sulfide
Explanation:
DNA is the main genetic material found in living organisms, and helps in the transmission of traits from parents to offspring through the genes.
It consists of several repeating units of polydeoxynucleotides composed of chemical like nitrogenous bases (such as thymine, cytosine, adenine and guanine), deoxyribose sugar and phosphate groups.
Thus, sulfide are not present in DNA
Average speed (aka average velocity) is the change in displacement (distance) over the chance in time.
The average velocity of the baseball is 15 meters/sec
1. holding a tray in the cafeteria line
2.
3. joule divided by a second
4.
5. the force a simple machine applies to an object
No, this item is not made of pure silver because if it has been made from pure silver that it would have displaced only 1.16cm³ of water but due to the addition of some other low-density element it displaces 1.9cm³ of water.
<u>For pure silver</u>
density of pure silver is = 10.49 g/cm³
mass of silver = 12.2 gram
since, density = mass/volume
volume = mass/density
= 12.2/10.49 cm³
= 1.16 cm³
But the actual displaced water is <u>1.9cm³</u>, which means some other element of lower density has been added.
Therefore, it is clear that the given jewelry is not made of pure silver.
Learn more about silver here:-brainly.com/question/17086277
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