As this procedure is carried out in the natural habitats of this species, this is an <em>in-situ conservation</em>.
<em>In-situ conservation </em>is the type of conservation that occurs on site, where the natural populations of plants or animals are found.
I think it’s a, hopefully you get it right!
The right answer is HEPA filter.
A HEPA filter (High Efficiency on Particles Air) can filter up to 99.97% of 0.3μ aerial particles.
These filters are used to clean the air and retain suspended particles (dust, pollen, bacteria etc.) and other particles that can cause respiratory allergy in sensitive subjects.
They are very used in sterile rooms