Number three number three number three I’m not 100% sure though
Answer:
Explanation:
R-744 is seen as the 'perfect' natural refrigerant as it is climate neutral and there is not a flammability or toxicity risk. It is rated as an A1 from ASHRAE. While it is non-toxic there is still risk if a leak occurs in an enclosed area as R-744 will displace the oxygen in the room and could cause asphyxiation
Answer:that is associated with diarrhea in humans. ... Examples of giardia in a Sentence ... These example sentences are selected automatically from various online news sources to reflect current usage of the word 'giardia.
Explanation:
