The National Institutes of Health found it effective in reducing pain and other symptoms, but it is not clear how it works.
It should be Ozone, hope that helps.
Trees release CO2 which is Oxygen.
Plants release water vapor through Photosynthesis.
Answer:
1 and 4
Explanation:
Streptobacilli are linked together in chains, the bacterium is gram positive and the generally rod-shape. The genus could be aerobic ( required oxygen for their growth), falcultative anaerobe (in the absence of oxygen, they can switch to fermentation).
So the teachers can focus instructions to meet all the students academic needs
