Use the picture below to help you answer the question. A car leaves Harrisburg, PA and travels West on the turnpike. How far has the car gone in 4 hours?
Question 21 options:
A.50 km
B.70 km
C.35 km
D.0 Km

Distance is a measure of how much ground has been covered by an object in motion. The object has been covered 70 km of distance in 4 hours. Option B is correct.

Therefore, the object has been covered 70 km of distance in 4 hours.

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B. 70 km

Explanation:

the answer is in the graph

the line same point at 4hrs= 70km

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do u go to k12?

the sugar-phosphate backbone forms the structural framework of nucleic acids, including dna and rna. this backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.

ans.

dna fingerprinting is defined as a process that determines the dna characteristics of an individual. these dna characteristics are unique among individuals as their fingerprints, so it is known as dna fingerprinting.

steps of dna fingerprinting includes extraction of dna from sample, amplification of dna, restriction digestion of amplified dna, and then analysis of dna by gel electrophoresis, respectively.

thus, the next step performed by the scientist is 'to cut the amplified dna (obtained by polymerase chain reaction) by restriction enzymes that cleave the dna into fragments and their analysis.'