Which of the following best explains the factors that led to the dust bowl?

a.
humans had been farming the land for too long without droughts.
b.
temperatures suddenly increased and brought on drought conditions.
c.
poor farming techniques that killed the soil were combined with drought.
d.
humans employed bad soil management practices that were unsustainable.

because the light is a great source of energy for the plants to survive. (i hope this )

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.'