<span>A system: is a set of connected things or parts forming a complex whole, in particular.
Yes Earth would be a system</span>
I think the answer to the top one is b and on the second one d
Leonardo da Vinci (1452-1519) is considered the worlds greatest genius or the ultimate Renaissance man (someone good at everything). He was an Artist, Inventor, and Scientist whose famous works range from the Monalisa, The Last Supper, and the Vitruvian during the Italian Renaissance. Leonardo made an immense contribution to the study of medicine, science, and art with a voice of reason, logic, and science in a world of superstitions.
Contributions to art
He excelled in drawing, painting, and sculpture, the Monalisa and The last super are among his most famous.
Inventor and Scientist
Leonardo's journal was filled with over 13000 pages of how he observed the world and drew pictures and designs of helicopters, war machines, musical instruments, and hang gliders.
He studied the human body and drew muscles, tendons and the human skeleton. He also had detailed pictures o the heart, arm and other organs.
Una controversia que recuerda a GamerGate se está gestando en la comunidad de juegos, ya que el diseñador de un juego popular defiende su elección para programar algunos estereotipos problemáticos de género en sus personajes.
Aunque RimWorld aún no es un juego completo, el simulador de supervivencia de la caja de arena de la colonia de ciencia ficción, publicado por primera vez en 2013 — se ha vuelto cada vez más popular desde su lanzamiento de “Early Access” en la plataforma Steam en julio pasado.
Answer:
Haile Selassie personally directed campaigns against the Italian troops in northern Abyssinia, but the better equipped Italian troops, coupled with the willingness to deploy chemical weapons, frustrated the Abyssinian Emperor.