The user should preview a document first to make sure the layout is correct, so as not to waste paper if a font size or layout is incorrect.
Answer:
the pilcrow symbol is paragraphing in keyboard
Answer:
200 nm
Explanation:
We need a constructive interference to see the bright reflection
we know that 
where m=1 and 
is the wavelength of the gasoline
so 
putting the value of m and in thickness equation
so the thickness of the film will be 200 nm
A
because if you leave certain metals in the rain they tarnish or rust. think about how if you leave a bike in the rain for too long it will start to rust on the metal parts
Answer:
Interpolation string.
Explanation:
The proces of adding the variable in middle the string.The interpolation Replace the value of the Variable when the string data is processed .In the Interpolation process the variable is permitted with string containing double quotes.In the interpolation string the interpreter check the entirely string that the variable in middle the string.
Following is the example of interpolation string in Php
$n1 = "RAM";
echo "hello $name"; // output
Output:
hello RAM
