In the introduction to Where Is Niagara Falls? Jim agrees to allow Roger to steer the boat after they pass under the bridge. Which detail best explains why this was a bad idea at that moment? “He knew all about how to stay safe on the river.” “Jim grabbed some oars and began to row as fast as he could.” “It was Roger’s first time ever in a boat.” “The boat was nearing a dangerous part of the river.”

It was extremely base of him to desert you in your time of need. ( change into exclamatory sentence)

One of the author's purposes in the code book is to explain different types of codebreaking to his readers. which line best demonstrates this purpose? a theoretical breakthrough would be a fundamentally new way of finding alice's private key mathematicians have been studying factoring for centuries, and modern factoring techniques are not significantly better than ancient techniques a more recent development is the so-called tempest attack, which aims to detect the electromagnetic signals emitted in a computer's display unit if scientists could build a quantum computer, it would be able to perform calculations with enormous speed mark this and return save and exit next submit

Which description provides the best objective summary of the article in the passage?