child rearing is the process of promoting and supporting the physical, emotional, social, and intellectual development of a child 
I agree.  What's your favorite part about child rearing?
Parenting refers to the intricacies of raising a child,biological or not
It certainly does and can be an enjoyable experience for all inolved!  Do you have any kids?
Have you raised a child before?
No I sure haven't.  I am an uncle to 3 children though.  Me and my nephew play basketball and go fishing a lot.
There are cases wheremany cases, orphaned or abandoned children receive parental care from non-parent blood relations. 
Yes adoption is a beautful thing.  I haven't really thought about adopting children at this stage in my life yet.
Adoption
Adoption is a process whereby a person assumes the parenting of another, usually a child, from that person's biological or legal parent or parents. Legal adoptions permanently transfers all rights and responsibilities, along with filiation, from the biological parent or parents. 
In many jurisdictions the adopted person's full original birth certificate is cancelled and replaced with a fabricated post-adoption birth certificate which states that the child was born to the adoptive parents. This deception, where carried out, may continue with the adopted person for
Parenting
Parenting or child rearing is the process of promoting and supporting the physical, emotional, social, and intellectual development of a child from infancy to adulthood. Parenting refers to the intricacies of raising a child and not exclusively for a biological relationship.
The most common caretaker in parenting is the father or mother, or both, biological parent(s) of the child in question, although a surrogate may be an older sibling, a grandparent, a legal guardian, aunt, uncle or other family member, or a family