<span>When the microscope was invented, it helped the cell theory. This invention allowed scientists to see that everything was made up of cells and see what cells do. They needed this invention in order to see that cells existed and study them more in depth.</span>
I don't belev there will b another planet.....they took Pluto off cause it was too small to b co side red as a planet as there r lots of other stars or whatevr that size...I cud b wrong in this idk
3.13 x 10 ^9
This is because only 1 number is front of the decimal and 2 numbers should be after
It is 19.3g/cm^3. To find density, you divide mass by volume, or d=m/v
