Answer:
The ignition delay in a diesel engine is defined as the time interval between the start of injection and the start of combustion. This delay period consists of (a) physical delay, wherein atomisation, vaporization and mixing of air fuel occur and (b) of chemical delay attributed to pre-combustion reactions. Physical and chemical delays occur simultaneously.
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Mutualism.
An example of mutualism is where insects pollinate plants, then the plants provide nectar.
Answer:
Definition
Explanation:
A database relationship is a situation between two relational database tables when one table has a foreign key that refers to the other table's primary key.
Relationships allow for the separation and storing of information in different tables when connecting disparate data objects.
