Source
As I introduce himself in 1st post of Steemit and after verification my 1st post am very greatful to @haidermehdi & @hassanabid for voting my post.
In mine 2nd post I has discuss about security of Steemit, for the sake to learn basic security on this app I read different user's posts and different writers articles About it which proves for my self very beneficial.

Pic Made by me

Posting key

The posting key can be used to upvote or downvote other posts, write comments on them, and make steemit postings.
One thing to keep in mind is that we should always sign into steem with our posting private key, which allows you to acquire anything with just one key, your posting key.

Active key:

We use the active key to adjust the account settings, increase or decrease the SBD conversion power of steem, or switch sbd or steem to our account.
You will immediately lose all of your earnings if you share your active key with someone.

owner key:

If I wish to make someone else the owner, I can use the owner key to reset the owner. It also allows me to reclaim my account and deny voting privileges.
It is the most important key.

Memo key:

This key isn't particularly useful; it's solely used to read and compose memos. If you want to discard it so you can it because you have option it.

Master Password

To generate all other passwords, we must first enter our master password, following which all keys will display in pdf format, ready to be downloaded and utilised.
That is why I duplicated my full key.

Transfer my steem token to another steem

I can transfer by following way

power up my stream

Using the power up option in the steem wallet, I can raise the value of my steem.

So I have given all the answers. I hope you will appreciate my efforts.
Cc
@cryptokannon