Answer: Jethro Tull was one of the most important inventors of the Industrial Revolution. He designed plowing and seeding contraptions that made farming a not-so strenuous task as before. … At this time farming was a very different ball game then it is today. The seeds were distributed by hand; this was also known as drilling.
I think the correct answer from the choices listed above is the third option. The key belief or practice in the aztec religion would be noblemen sacrificed their first-born sons at the temple. Hope this answers the question. Have a nice day. Feel free to ask more questions.
1. malaria 2. rivers had terrible waterfalls..too dangerous...until the steam engine was invented it was incredibly dangerous 3. deserts....they didn't know how to travel through the deserts and find an oasis which made it very difficult to travel through