Choose the word group that is a run-on sentence: a comma splice or afused sentence. If neither word group is a run-on, write "Neither wordgroup is a run-on sentence."
1. It is becoming harder and harder for Matt to find places where his dog Acorn can expend her boundless energy, she is starting to hate her leash.
2. Matt has always thought about living in the country, so he is starting to inquire about land for sale.

Sentence 1 contains a comma splice (the comma before 'she.') A period or semicolon is needed here instead of a comma.

Sentence 2 is correct as is.

Explanation:

the illustration   that would give a reader a clear understanding of the text is a picture of men constructing the frame of a building.the frame is made of iron bars. the text describes the job of blacksmiths'. these were very organised and they had different names: "the driver" and "the heater". the text describes the way in which these men worked ; they worked iron pieces as if they were playing a sport. in fact, the text wants to show the men's skills. the text also puts some emphasis on the use of '' rivets'' in construction. this kind of nails were not always used in the construction of manhattan.

some examples:

"and with an underhand toss he hurled the smoking rivet straight at the catcher, who caught it in mid-air in his catching can." men's skills

"when the driver was ready for a new " the emphasis on the rivet ( special nail used in construction).

" it against a beam to remove any cinders, and jammed it into the waiting hole. " the emphasis on the rivet.