However, the plesiosaur theory is not the only one. many other ideas attempt to explain the sightings and "photographs." but two separate sonar surveys of the loch have not found any evidence of a creature larger than a salmon. the last survey,1 completed in 2007 by the british broadcasting company (bbc), involved 600 different sonar beams. using satellite navigation systems, the team made sure every inch of the loch was searched. the team found nothing. what is the main idea of the bolded paragraph? to explain the different theories surrounding the loch ness mystery to explain the reasons people still believe that the loch ness monster exists to explain the ways people have tried to solve the loch ness monster mystery to explain why a plesiosaur cannot be nessie

To explain the ways people have tried to solve the Loch Ness Monster mystery

Explanation:

According to the paragraph, there have been several attempts to solve the Loch Ness monster mystery, apart from the plesiosaur theory, the sightings and photographs. In that respect, the speaker mentions two sonar system examinations, which detected objects under water and measured sound pulses in the loch. Finally, the last inspection by BBC in 2007 did not find any evidence of a large animal living in Loch Ness.

1. read the following excerpt from franklin d. roosevelt's "fireside chat 19":

on the other side of the picture, we must learn also to know that guerilla warfare against the germans in, let us say serbia or norway, us; that a successful russian offensive against the germans us; and that british successes on land or sea in any part of the world strengthen our hands.

remember always that germany and italy, regardless of any formal declaration of war, consider themselves at war with the united states at this moment just as much as they consider themselves at war with britain or russia. and germany puts all the other republics of the americas into the same category of enemies. the people of our sister republics of this hemisphere can be honored by that fact.  

the true goal we seek is far above and beyond the ugly field of battle. when we resort to force, as now we must, we are determined that this force shall be directed toward ultimate good as well as against immediate evil. we americans are not destroyers — we are builders.

analyze the effectiveness of this excerpt. how does it function within the speech as a whole? how does the structure of the excerpt to convey the speech's purpose and key points? support your argument with evidence from the speech. (10 points)

i can you there : )