B) The 1920s mark the emergence of mass production and mass consumption
Because they never knew when one of their family members would be sold to a separate place. They had no way to stop things from happening.
Answer:
Option: It reduced the amount of excavation required to build the canal.
Explanation:
By creating Gatun Lake during the construction of the Panama Canal reduced the excavation time and money because it provided a water passage, between the Atlantic Ocean and the Pacific Ocean. The canal permits ships from both sides to enter and reduces the time of journey. Gatun Lake is an artificial lake one of the largest in its time when it was built.
