Cleaning/preparation I know that these are correct because i put the same answer on my test and they were correct
More waste has been a negative impact of technology, as more human labor is not a bad thing as it employs people and earns them money to support themselves and their families. Less farming and less access to food are not a direct effect of technology; in fact, technology improves farming and allows more crop yield. Hope this helps! :)
DNA being placed with DNA polymerase and nucleotides and resulting in new copies is not an opinion or inference because the fact is, new more DNA was found in the test tube after adding the enzymes and nucleotides than before the addition. DNA sequencing of the new copies would have shown that the sequences of the new DNA are identical to the original DNA that was first placed in the test tube. Also, other experiments would have shown that adding other different kinds of molecules or enzymes does not, in fact, produce new strands of the original DNA, nor should it be able replicate the DNA at all.