HELP ASAP
Which of the following refers to the small irregularities on a tool that happen every time a tool is used?
A.
slipped mark
OB. accidental characteristics
O C. rifling
OD. pitch
O E. class characteristics

OB. Accidental Characteristics

Explanation: Physical markings and features in a material that are acquired by wear or by some accidental or other non-repeatable circumstance during manufacture. For example, glass that is made by pouring molten material into a mould may develop bubbles which would be considered an accidental characteristic.

that is wrong, its not thymus.

kelp are large brown algae that live in cool, relatively shallow waters close to the shore. they grow in dense groupings much like a forest on land. these underwater towers of kelp provide food and shelter for thousands of fish, invertebrates, and marine mammal species.

e) all of the above