Neutralisation is when you have a strong acid and also a strong base (alkali) E.g 7 ph.
Answer:
Mollusks can be segregated into seven classes: Aplacophora, Monoplacophora, Polyplacophora, Bivalvia, Gastropoda, Cephalopoda, and Scaphopoda. These classes are distinguished by, among other criteria, the presence and types of shells they possess.
A decline is a situation in which a security's price decreases in value over a given trading day and subsequently closes at a lower value than its opening price!!