Both John Carver and William Bradford C. <span>Each were governors of the Plymouth colony.</span>
Thomas Edison invented that, he invented<span> the </span>indoor electric light bulb, along with<span> the phonograph.
Here's a picture of a ponograph, hope this helps! </span>
Answer:
D. His improvements allowed the steam engine to run more efficiently on oil instead of coal.
DescriptionChild slavery is the slavery of children. The enslavement of children can be traced back through history. Even after the abolition of slavery, children continue to be enslaved and trafficked in modern times, which is a particular problem in developing countries