Trading Based on One Exchange's Prices

[CucakRowo]

How can you tell if its organic volume or artificial volume?

If you ask about that, imo, no one can say that the price movement on one exchange is an organic movement. Many factors affect, one of them is the use of trading bot.
But if you want to study the liquidity and volume of an exchange, you can visit Coingecko. From there you can see the reason why coingecko teams make a trust scores classification of an exchange, maybe there are things that interested you.