The first tacoma narrows bridge in washington crossed over a strait in puget sound. at the time the suspension bridge was built, construction workers noticed that it moved up and down in the wind. measures to stop the bridge’s movement were ineffective, but the bridge was opened to the public on july 1, 1940. the bridge collapsed on november 7, 1940. luckily, no people were seriously injured. determine which technological design criteria the tacoma narrows bridge did and did not meet. explain your answer.

Bridget is in science class. her teacher gives her two unknown substances and asks her to determine their relative ph. she places a piece of red litmus paper into both substances. the litmus paper turns purple when she places it into substance i. the litmus paper turns blue when she places it into substance ii. a. substance i is a neutral substance and substance ii is an acid. b. substance i is a neutral substance and substance ii is a base. c. substance i is an acid and substance ii is a base. d. substance i is a base and substance ii is a neutral substance.