Which type of radiation causes damage primarily through ingestions or inhalation?

Inspection of products of conception, percutaneous endoscopic approach

Select the correct PCS codes: A) 0YLM0ZZ B) 0YJN3ZZ C) 10J04ZZ D) 10J17ZZ

The ______________________ is defined as the ratio of gas/vapor in air that is between the upper and lower flammable limits

a. LFL b. UFL c. combustible range d. flammable range