Answer:
Transporting goods became WAY less expensive than it was before hand and a bit safer as well. Quicker times and more.
Explanation:
Fundamentals of railroads :D
It allow humans to farm therefore they no longer had to follow animals that they hunted, because of this they were able to settle and have more spare time and that's how civilization started.
You can identify an animal or a friend or family member by just hearing their voice.
The Sumerian plow is most like c. a tractor.
Hope this helps! :D
Positive <span>reinforcement is a reward for a constructive action.
Have a good one!</span>
