Which of the following was not a benefit of the portuguese expeditions down the african coastline?
a. the expeditions allowed for astonishing nautical successes and inspired further exploration.
b. the expeditions created new trading opportunities for portugal.
c. the expeditions brought them closer to discovering the interior of africa.
d. the expeditions brought them closer to discovering a sea route to india.

radioactive dating, also known as  radioisotope dating  is a process that in  estimating the approximate  age  of  rocks. these data can be analyzed from  the studies dealing with the  decay of the radioactive elements that are present in these rocks. in nature, there are a few types of materials or atoms which are quite unstable and they spontaneously decay or breakdown to form other kinds of atoms.

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