Representatives maintain a positive relationship with constituents by:
I) staying in constant communication with the constituents i.e. use of letters, blogs, media appearances and websites
ii) Having their staff to carry out casework, or the staff helping to resolve problems which the constituents have encountered with the national government, and request for favours such as tours of government offices and setting up meetings.
iii) Voting for motions that would keep their constituents happy by serving the interests and concerns of the constituents.
Answer:
The result of the Iranian Revolution of1979 was the overthrow of the Monarch Mohammad Reza Pahlavi, Grand Ayatollah, Ruhollah Khomeini took over
America was supplying Britain with tanks and munitions before they entered the war by putting them on cruise ships to make them look innocent. Britain later intercepted a telegram known as the Zimmerman letter, intended for mexico saying if America goes to war then Mexico should attack America and in return they will get their land back. Britain intercepted this and showed America, who later through a vote in Congress declared war on Germany. America was fresh in the war so they weren't tired from fighting, and had a lot of resources. America was able to help push Germany's lines back in the western front.
Had to look for the missing options and here is my answer.
What made the trade of surplus crops at distant markets by the farmers during the Bronze age was the use of the technological advancement which is the METAL PLOWS. This plow has benefited a lot of farmers during this time. Hope this helps.