Answer:
He wasn't sure what really happened.
Explanation:
Walter Lord was among those involved in the wreck of a large ship known as Titanic.
It was made known that, the six lookouts, that was the people monitoring the movement and watching the route the ship was following, did not known that the side of the ship had hit the iceberg because they saw that the front of the ship was okay.
This did not make them to raise the alarm until the ship was beginning to sink.
That was why also, Walter Lord was reluctant or delay to add the quotation to his account.
The Red Scare or communism was the <span> political system that emerged directly from world war 1.</span>
The need to maximize a limited access to water for both human consumption and agriculture might explain the fact that both Peruvian cultures - both agricultural civilizations - used underground aqueducts to collect and transport water to reservoirs that were located nearby. For instance, the rivers that supplied the Nazca people did not carry any water during part of the year, so they conceived an innovative system that allowed them to collect the water from the rain that filtered through the ground into underground galleries, which allowed them to prevent the loss of that water - they inhabited a desert area, after all. The Chavin civilization also inhabited arid and extensive coastal areas that required ample and complex irrigation systems, hence the importance of saving and transporting water.
It was named “Little Boy” dropped in Hiroshima in world War 2
