The answer is the first one because when working with green or blue screens you have to light the setting perfectly so you wont have shadow portrayed on your simulated environment <span />
40 degrees or under... anything above that would produce a healthy larva growth.
Answer:
What is mortising in chiselling?
Mortising machines are frequently used to cut mortises in wood for mortise and tenon joints.
I hope this helps, L.E.