Answer:
Washington Roebling’s father dies.
Explanation:
John Augustus Roebling was a German-born American civil engineer. He designed and built wire rope suspension bridges, in particular the Brooklyn Bridge, which has been designated as a National Historic Landmark and a National Historic Civil Engineering Landmark.
Answer:
The population of Wood Duck is most steady.
Explanation:
As from the data the values of the duck population in each year for the locations is as below:
Duck Pond Mallard Wood Green American
Duck Wing Teal Widgeon
Year 2010 108 11 19 24
Year 2011 152 12 34 29
Difference 44 1 15 5
As the difference between the two populations is minimum in Wood Duck so the population of Wood Duck is most steady.
