You have to use special eye-protection to look at the sun.
use sun in sentence
No, you cannot start a sentence with "no" unless you need to do so. No reason exists not to start a sentence with that word, as you can see. No one will care if you do start a sentence with it.
The nouns in the sentence are sun and glasses.
Yes, I can start a sentence with "Is."
if u want it to, or u could drink the mayonaise if u wanted
Aimlessly wandering through the desert sands, with the sun beating down, almost cost the explorer his life.
Yes, you can start a sentence with a verb.
Yes, you can start a sentence with an acronym.
"Cover yourself from harsh sun" is not a correct sentence. A better sentence with proper structure might be "Cover yourself to protect from the harsh sun".
A period is used in the sentence "the sun is" to indicate the end of a statement.
You can start a sentence with "Also"
You start a sentence with whatever word you need to start it with. A sentence can start with "A" if it needs to. A sentence just needs to make sense.