No, but the animal name does.
Deer is an animal word that starts with a capital 'D'.
No
no
No. The word "bear" is typically uncapitalized unless it is used at the beginning of a sentence or as a proper noun (eg. Yogi Bear).
Yes, in most cases, a word should start with a capital letter after a period. This is a grammar rule that helps to indicate the start of a new sentence. However, there are exceptions such as in abbreviations or when using certain punctuation marks like a question mark or exclamation point at the end of a sentence.
No, the word "waterfall" does not have a capital letter at the beginning unless it is at the start of a sentence or part of a title or heading.
Only if it's the first word in a sentence.
Yes.
In English, all proper sentences start with a capitalized word.
A common noun does not start with a capital letter unless it is the first word in a sentence.
The first word of a sentence must start with a capital letter. There are millions of ways to start a sentence!
for the word summer you use its capital s if in a title or start of sentence