How has the removal of wetlands impacted rivers and streams?
a.
it has increased the rate of absorption, causing a decrease in water levels.
b.
it has decreased the rate of absorption, causing greater incidents of flooding.
c.
it has hindered the migration of fish, causing a loss in biodiversity.
d.
wetland removal has had no measurable impact on rivers and streams.

The correct answer is option b. "It has decreased the rate of absorption, causing greater incidents of flooding".

Explanation:

Wetlands are a type of ecosystem characterized being flooded with water almost permanently, which allows the proliferation of aquatic plants. The removal of these ecosystems has impacted rivers and streams by decreasing the rate of absorption, causing greater incidents of flooding. Wetlands serves as water deposits, helping to prevent flooding. Removing them  results in greater incidents of flooding and decreasing the rate of absorption at rivers and streams.

there really is life in the deepest part

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.'