Light reflecting off of a rough piece of paper is an example of?

Diffuse reflection

Explanation:

Diffuse reflection is a reflection which can be defined as the reflection of incident rays (light) from the surface where the incident ray on the surface is scattered  at many different (places)angle as compared to smooth reflection that place at a single angle.

This takes place where the surface is rough and the light falling on it falls at many different angle of incidence.

Here, the rough paper is also an example of the diffused reflection in which the light diffuses with great efficiency.

white blood cells or wbc s are mainly 2 types-

1.agranulocytes

2.granulocytes

the monocytes or macrophages of agranulocytes , dendritic cells which are accessory leucocytes, and b cells which is one type of lymphocytes   identify the antigens present on the pathogen's surface. these three cells are called antigen presenting cells(apc) which are phagocytes and destroy the antigens by secreting antitoxins. besides this leukocyte is always plays vital role in the immunity of the body.

a physical change is being made.