Answer:
The invention of the wheelbarrow aided in the hauling of heavy loads.
Explanation:
If the President, VP and Speaker of the House is unable to serve by death, incapacitation, impeachment, etc...the President Pro Tempore of the Senate will be the successor of the United States.
Answer
Abolitionist increased their efforts to end slavery
Explanation:
New York and Virginia dont know 3rd sorry <span />