Part 1. Definition
You are given a passage. You need to construct a question about the information present in the passage. Construct a question in such a way that (i) it is unambiguous, (ii) its answer is the whole paragraph. Avoid creating questions that can be answered correctly without actually understanding the paragraph.
Part 2. Example
Optical mice use an LED and a camera to rapidly
capture images of the surface beneath the mouse.
The infomation from the camera is analyzed by a
DSP (Digital Signal Processor) and used to detect
imperfections in the underlying surface and
determine motion. Some materials, such as glass,
mirrors or other very shiny, uniform surfaces
interfere with the ability of the DSP to
accurately analyze the surface beneath the mouse.

Since glass is transparent and very uniform, the
mouse is unable to pick up enough imperfections in
the underlying surface to determine motion.
Mirrored surfaces are also a problem, since they
constantly reflect back the same image, causing
the DSP not to recognize motion properly. When the
system is unable to see surface changes associated
with movement, the mouse will not work properly.
Answer: why doesn't an optical mouse work on a glass
table?
Explanation: The passage talks about the glass and mirror surfaces beneath the optical mice and how the mouse is unable to pick up enough imperfections in the underlying surface to determine motion. The last line of the passage explains why the mouse will not work properly on these surfaces. Thus it is a positive example.
Part 3. Exercise
It depends. Just about any binoculars provide good view. Make certain you stay away from very strong magnifications, otherwise you will need a tripod to keep them steady and may get dizzy without it. The larger magnifications also limit your field of view.

I have some 8x42 Nikons that are great.

Just in case you are not aware: the first number given in the binocular is the magnification. Stick with 7 or 8. The 10s you will need the stabilization electronics or a mono/tripod.

The second number provides information on how much light comes through the lens.

For example...if you were to compare the same brand and model with the exception of the number difference: 8x25 vs 8x42:

The 8x25 will provide the same size image but the 8x42 will provide a brighter image. If you are thinking about purchasing online...before you do find a camera store or a sporting goods store to see how they feel and get a better feel for what you really want. Hope that helps...happy star viewing!

Also another possible source for help would be to see if there is a local star party group in your area. Drop by one night; it can be fun to meet some experienced viewers with telescopes already setup as well as some people who have the really large expensive scopes which you may not be able to afford.
Answer:
What are best general purpose binoculars for astronomy?