Options:
- A. airborne allergens
- B. water borne allergens
- C. animal faeces
- D. bio-weapon
View Answer
A. airborne allergens
A. airborne allergens
B. Earth is b/w the sun and the moon
B. Disease
B. Oxidation
B. Helium
A. 1%
A. Nitrogen Dioxide
B. Nicotine
D. commensalism
C. Anthropogenic pollutant