Answer:
Galileo Galilei discovered io on January 8th, 1610 and the discovery, along with the three other Jovian moons Europa, Ganymede and Callisto, were the first moons discovered that were orbiting a planet other than Earth
We have Protons and Neutrons in the nucleus of an atom, Protons are positively charged, neutrons are non-charged particles.
Answer:
Galaxies rotate in their center with parts of galaxies that are far away from centre.
Explanation:
Galaxies move throughout the space. It rotates around its center with the portions of galaxy that are far from the center and moves relatively slowly from other objects near the center.
Because of the Big bang explosion because of which the Universe have expanded, galaxies are going away from other galaxies. The galaxy cluster also moves around the cluster center.
Answer:
number two but it meant to have 3protein s follow
I’m pretty sure it’s the first option, if not I am so sorry.
