Answer:
The main sequence stretching from the upper left (hot, luminous stars) to the bottom right (cool, faint stars) dominates the HR diagram. It is here that stars spend about 90% of their lives burning hydrogen into helium in their cores. Main sequence stars have a Morgan-Keenan luminosity class labelled V.
Explanation:
Plants use nitrogen for <u><em>making protein</em></u> since proteins are rich in it because of the amino group of the amino acids.
Answer:
C) Scrubbers remove sulfur from the smoke of coal power plants.
Explanation:
Well most scrubbers in North America (U.S) coal plants are used to remove sulfur emissions from coal and lessen the formation of acid rain.
D. Bacteria because “bacteria” is actually a domain itself
Answer:
The correct answer will be option-B
Explanation:
The process of transcription transcribes the sequence of the bases of genes present on DNA to mRNA which acts as a messenger molecule for the protein synthesis.
The process of transcription is mediated by the presence of enzymes which includes the main transcription enzyme called RNA polymerase. RNA polymerase attaches nucleotides to RNA strand.
The transcription process initiates in three stages: initiation, elongation and termination.
The initiation process begins when RNA polymerase binds to the promoter nucleotide sequence which is present at the start site or the upstream on DNA towards 5' end.
Thus, Option-B is the correct answer.
