A primary source is made by someone who was there during the event. In this case, it’s the American Revolution. There isn’t a provided picture (well at least on my screen there isn’t) so I can’t give whatever the choices are, but some examples of a secondary source are:
textbooks, book reviews, reprints of maps/artworks, etc.
ANSWER: Indus Valley
Many historians believe the Indus civilization collapsed because of changes to the geography, climate of the area, halted trade with Mesopotamia, and Aryan invasions.
That’s literally the easiest question but it’s bad for your body to do that and it could cause death and heart failure and lots of other health problems
Germany was expected to pay reparations after WWI. War damaged their country, and left it in pieces. They had very little money to rebuild their buildings and roads because of the reparations.
Today there is little to no slavery, and slavery is illegal. people are no longer tortured and beat for the color of their skin, and can live freely dispose their color. however, in some areas there is still slavery, but there is a lot less than what there used to be.