Answer:
Explanation:because of electricity the coal amount will decrease
B
The other problems are not as easily solved; whereas, data collection over long periods of time is possible and was already done in the past, eg temperature and weather patterns. Therefore, this is the easiest limitation to overcome.
Answer:
the data could suggest that there were different species of sheep
did it say that there were different species or were they all the same?
Explanation:
The answer would be the last one because a deletion changes every codon configuration that follows it and thus changes the amino acid that codes for that codon