Answer:
Climate change, Availability of resources
Explanation:
1. Soon enough when the climate on the planet started to become more arid and become too hot, so humans started to migrate from Africa.
2. People started to move away to the places where resources were available.
I believe the answer is A, because the Mayans were located right underneath the Guatemalan peninsula(which is that little island looking piece above A).
Answer: 3) a new type of warship with sides covered into iron.
Explanation:
Ironclads were a crucial innovation in the history of naval warfare. The term was known for iron-armored wooden hulls. Warships used by the The Confederacy since the year of 1861 were to combat the numerically superior Union navy. Union ironclads were also associated with North Carolina. The USS Monitor sank off Cape Hatteras on 31 Dec. 1862.
Answer: Electricity helped better communications by powering the radios & the moving-making equipment.