<span>Because he had ideas way ahead of his time. He had many gifts and abilities. He was an artist, inventor, scientist etc. For example, he did many sketches of machines that looked like inventions made a few centuries later:flying machine, tank, helicopter. He also drew detailed images pf some of the first autopsies to document biological anatomy.
</span><span>
</span>
<span>biogeochemical cycles</span>
I believe the correct answer from the choices listed above is option D. The difference between a seismograph and seismogram is that a seismograph is the instrument that detects and records volcanic activity, while a seismogram is the written record of that activity. Hope this answers the question.