What makes a source credible is it has backed up information. Basically, it has to have supporting details so you know its true.
the atmosphere is the closest layer to the earth and it is made up of is made up of 78% nitrogen, 21% oxygen, and smaller amounts of argon, carbon dioxide, helium, and neon.
European settlers pushed many ancient North American tribes off of their land. Either by force, or by disease. Hope I helped! ;)
The ability to use an applied force to make an object move
Answer:
to make agricultural tools and to make chains for suspension bridges
Explanation:
