On the Pools tab users can select the pool they would like to see more options on. A user can choose to provide liquidity to a pool. A user will have to provide both assets to the liquidity pool at the prevailing rate. When the user provides liquidity they will receive LP tokens. Users can then choose to stake these LP tokens.
When providing liquidity the maximum amount you can provide is the smaller value of each of the two tokens in your wallet. For example if PRISM was worth $1 and you had 1500 PRISM tokens and 1000 UST, you would only be able to provide 1000 UST and 1000 PRISM tokens to the liquidity pool.