Ascientific model can be used to
a. replace study of the actual system
b. better understand systems and processes
c. complicate ideas
d. all of the above

Which historical detail can best clarify a reader’s understanding of the information in the excerpt? immigrant factory workers who spoke the same language were separated from each other at work. immigrant factory workers who spoke the same language were known to talk too much at work. immigrant factory workers had to pay rent for their chairs and the supplies they needed at work. immigrant factory workers were crowded into unsafe buildings with locked doors and fire escapes.

Is "ing" an unstressed or stressed syllable?

Bicycle riding should be encouraged, and adding bicycle lanes will increase the number of riders. it is healthier for people to ride than to sit angrily in traffic. it is healthier for everyone to breathe cleaner air. sharing the road can be tricky, but there are things that can be done. so, add the bike lanes and get rolling! which sentence would improve this conclusion? every town should consider adding bicycle lanes, because it is a great idea. organizing safety classes for drivers and cyclists will ensure that everyone knows the rules. do not listen to negative people who complain about anything new. it is true that some people might get injured, but even walking can be dangerous.