Which of the following contributed to the continued westward expansion into the mid-1800s? Question 3 options:

Access to travel by plane for more people

Mail delivery system (i. e. Pony Express)

Communication systems (i. e. telegraph)

Availability of the automobile

Which statement accurately describes a difference between the declarationof independence and the u.s. constitution? a. the u.s. constitution established rules for the u.s. government,while the declaration of independence did not.b. the u.s. constitution listed the colonists' reasons for rebellingagainst great britain, while the declaration of independence didnot.c. the u.s. constitution is based on ideals from the enlightenment,while the declaration of independence is not.0d. the u.s. constitution created a very weak central government,while the declaration of independence created a strong one.

What is one example of trench warfare ?

Which of the following best describe deflation