Answer:
filter
Explanation:
Some email programs let you use a filter to move incoming mail to a specific folder or to delete it automatically based on the content of the message.
The filter performs this role by either automatically deleting or moving to another location.
Most messages that are moved or deleted are unsolicited emails or spam messages.
Filtering of your mails helps so you ou can manage your incoming mail using filters to send email to a label, or archive, delete, star, or automatically forward your mail.
This is a way of organising your correspondence.
80 for HTTP, 443 for HTTPS
Answer: The most important characteristic for the development of a civilization is the presence of advanced cities because they were centers of trade, which established economies and allowed for further development of the civilizations.
Explanation:
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Answer: Filler content
Explanation: I think what the question is getting at is using filler content. This includes filler images and sample text. Once the website is all set up, the filler content is replaced with the actual content.