Ethyl alcohol is one of the series of organic chemical compounds
in which a Hydrogen (H) attached to carbon is replaced by a hydroxyl (OH). It
is made from sugar, starch and other carbohydrates by fermentation with yeast
and synthetically from ethylene or acetylene. It has been used in beverages
which has unstable, combustible, colorless liquid with slight distinctive odor.
The amount of Ethyl alcohol in any drinks can be determined by multiplying the
percentage (%) of alcohol and size.
Answer:
Some common insulators include wood, plastic, glass, porcelain and Styrofoam
Explanation:
Answer:
B) Nitrogen-fixing bacteria and lightning
Explanation:
Nitrogen cycle is the natural process in which atmospheric nitrogen is converted into nitrite and nitrate with the help of bacteria.
Nitrogen cycle is directly dependent on nitrogen-fixing bacteria and lightning.
As bacteria are responsible for most of the chemical conversion in the nitrogen cycle such as nitrogen fixation (first step) is done by soil bacteria (Cyanobacteria) that form ammonia, which is toxic to plants; nitrification in which ammonia is converted into nitrites and nitrates with the help of Nitrobacter and denitrification bacteria involve Pseudomonas, and Achromobacter which convert nitrite and nitrate into nitrogen.
The lightning breaks nitrogen molecules and allow it to combine with oxygen in atmosphere which further dissolve in rain and form nitrates.
Hence, the nitrogen cycle is most directly dependent upon nitrogen-fixing bacteria and lightning and the correct option is B.
For obtaining an adequate amount of DNA samples for DNA fingerprinting, polymerase chain reaction (PCR) can be used.
Polymerase chain reaction (PCR) is a technique that is used to amplify the DNA sample. The steps included in PCR are:-
1. Denaturation of the double-stranded DNA (at around 95°C)
2. Annealing of the primers to each of the single-stranded DNA templates ( at around 65°C)
3. Extension or elongation of the primers by considering every single-stranded DNA as a template. This elongation is carried out by <em>Taq </em>polymerase (at around 72°C).
With each cycle of PCR, the DNA sample is increased by 2ⁿ. Here, 'n' represents the number of PCR cycles.
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Learn more about polymerase chain reaction here: -
brainly.com/question/11442887
Answer:
Your answer is <u>True</u>. :^)
Explanation:
