Answer:
Coal is a combustible black or brownish-black sedimentary rock, formed as rock strata called coal seams. Coal is mostly carbon with variable amounts of other elements; chiefly hydrogen, sulfur, oxygen, and nitrogen. Hope this helps.
The consensus of the photosynthesis Gene trees also indicates that purple bacteria are the earliest emerging photosynthetic linage. Heliobacteria and green sulfur bacteria indicate that they synthesize photosystems that are ancestral to the photosystem 1
Since the chromosome number remains the same during mitosis, it would be diploid having 28. Also within the final stage.
Answer:
it's D. potential difference
Explanation: