Question

what invention, by michael faraday, became later known as the first electrical generator?
the steam engine
the telegraph
the phonograph
the dynamo
who arranged all the elements into a chart known as the periodic table?
guglielmo marconi
marie curie
charles darwin
dmitri mendeleev

Explanation:

Michael Faraday invented the dynamo which was a precursor to the modern - day electrical generator. Dynamo converts mechanical energy into electrical energy. Dmitri Mendeleev arranged all the known elements into a chart known as the periodic table based on their atomic masses and chemical properties.

Answer:

First question: D. the dynamo
Second question: D. Dmitri Mendeleev