The chemical composition of sodium dioxide is : <span>Na2O2 . remember that if it has 'dioxide' then it has to have an 02 somewhere</span><span />
Answer:
200 million years
Explanation:
It is considered that Pangea began to break about 180 million years ago. When Pangea started to break is when we have the beginning of the continental formation that we have nowadays and the start of the birth of the Atlantic Ocean between South America and Africa.
Answer:D
Explanation: The brain the central control in the nervous system
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