The probability of two independent events occurring together is the Quotient of the probability of each event occurring separately.
Earth and its atmosphere are continuously altered. Plate tectonics shift the continents, raise mountains and move the ocean floor while processes not fully understood alter the climate. Such constant change has characterized Earth since its beginning some 4 billion years ago.
there is a zero percent chance do to the sterilization and cleaning of all equipment as well as it being illegal to reuse needles in hospitals
C
in the first paragraph a fact is challenged
and the second one provides an example
Hypothesis and conclusion
