Questions

Sea appears blue in colour due to the scattering of the rays when they hit water molecules

Application layer protocol defines types of messages exchanged, message format, syntax and semantics and rules for when and how processes send and respond to messages.

Ichthyology is the branch of biology devoted to the study of fish.

It is also known as Fish science which includes bony fishes (Osteichthyes), cartilaginous fish (Chondrichthyes), and jawless fish (Agnatha).

Primary key helps us to identify a row uniquely in a relation

A Skeleton is what is whole but incomplete, have no eyes, yet can see. We can see, and see right through it. The largest part is one fourth of what it once was i.e body.