The simple answer is a yes.

Im not sure about it because many people said that if bitcoin gonna die all crypto currency will also died. So if theres no currency how can the blochchain use?

Funny to see some countries adopt blockchain technology and have strict or anti-crypto laws. Yes blockchain can exist without bitcoin, I believe but what would be the currency of reward on that blockchain, if that's sorted, then yea.

yes because bitcoin is supported by blockchain technology and not just bitcoin using blockchain technology for sure! and many already used blockchain technology to industrial and manufacturing interests.

Yes that is right that bitcion is just a coin,  but i think that blockchain without bitcoin or some other currencies is useless, in current time people using blockchain for dealing coins, so if we eliminate bitcoin from blockchain it will only remain a technology of no use, so we can say that both have a very close relation with each other,

Definitely, it will survive. Blockchain is a key to create more great things in the future.

I think yes. Technically speaking, there are better and faster cryptocurrencies than bitcoin. It's the blockchain technology that counts, not any particular coin. So, yes, it's possible for some other well established coin to replace btc in the long run. But that's not happening anytime soon.

I think blockchain can be used in many different areas, not just bitcoin. This system can exist without depending on bitcoin. But I think it's best to use blockchain in bitcoin. The electronic currency is applying the Blockchain technology that one of the typical applications. Although many people are misunderstanding that Blockchain is considered Bitcoin, in fact, Bitcoin is only the first application running on the Blockchain system.

Yes now block chain can survive without bitcoin as there are many good coins in the market. But still BTC is the king of the crypto world forever..

Well, now many business forms are developed on the Blockchain platform, so not only BTC, BTC is only the first virtual currency developed on Blockchain. Assuming the BTC is gone, Blockchain is still alive and developing around the world.