The following passage is from President Lincoln’s inaugural address to the American

President Lincoln's tone in his inaugural address to the American people was persuasive and reassuring.

But, since that's not an option the best option would be hopeful and impassioned!

How the author organizes "Watching Earth from space"

D: by discussing problems and solutions in using a camera in space

Explanation:

Norris and Pat's "Watching Earth from Space - How Surveillance Helps Us -- and Harms Us" (2010) is a book that narrates the story of how our planet, Earth, is being closely monitored with the use of hundreds of space-borne instruments, both for military and peaceful purposes.  It also details some of the technical challenges emanating from the use of space-borne instruments.  It also lists the agencies actively involved in the gathering of useful data from space, which help human beings to make critical decisions.