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The affect of deforestation in south Africa would make us have less oxygen in the air and many plants will die due to deforestation and less oxygen and carbon dioxide for energy.
Answer:
A. a replication of studies
Explanation:
A researcher performs a previous study following the same procedures to see if she will get the same results.This is an example of a replication of studies.
Carrying out a previous research under the same exact conditions to see if the results will be the same is simply a replication of study. Replication of studies is necessary for the validation of results gotten from the previous research.
Osama Bin Ladin caused the plane crash of 9/11, he was arrested a few years later
