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Individual atoms may be heavier or lighter. Also, the spacing between atoms may vary.
Birds usually sit on the line.
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Two points. These may coincide if the line is a tangent to the sphere.
After the main title, it is common to use double line spacing. However, the specific line spacing may vary depending on the formatting guidelines provided by the relevant style guide or publication.
To change a document from single spacing to double spacing, go to the "Page Layout" or "Layout" tab in your word processing program, find the "Line Spacing" or "Paragraph" section, and select "2.0" or "Double" spacing. This will change the spacing throughout the entire document.
In order for lines of text to be read, they cannot all be written on top of each other, so they need to be spaced out. Line spacing determines how much space is between each line of text. The standard is for each line to be immediately below the previous one, as you would see in this answer. Sometimes you want more spacing. This could be to make things easier to read, or because there is not a long of text on a page and it looks better if it takes up more of the page. Commonly you may have double line spacing, which is text on every second line.
The number of characters per typed page can vary depending on the font size, line spacing, and margins used. As a rough estimate, a standard typed page with 12-point font, double spacing, and normal margins typically contains around 2,000-2,500 characters including spaces.
Double spacing typically refers to setting the line spacing of text to 2.0, where each line of text is separated by an amount equal to the font size. Some word processing software may refer to double spacing as 2.5, but the standard convention is 2.0.
Spacing Out - 2012 was released on: USA: 12 May 2012 (internet)
Chopped - 2007 Chopped All-Stars Finale 14-13 was released on: USA: 5 May 2013
It means spread out to fill the entire line from left to right margin, and may use irregular spacing. I tried to do it here, may not show correctly in this context. It makes a paragraph look like a block of text with the same left and right edges on every line.
Spacing Out - 2012 Bryce Zabel 1-2 was released on: USA: 11 May 2012
Spacing Out - 2012 Area 51 1-1 was released on: USA: 4 May 2012
Chopped - 2007 Grilltastic 10-4 was released on: USA: 29 May 2012
Chopped - 2007 Momumental 15-5 was released on: USA: 7 May 2013