Answer:
Both ammonia and chlorine are soluble in water and hence, would dissolve in water if substance X is water and could not be collected. Ammonia gas would react with concentrated sulphuric acid to produce a salt and as ammonia is less dense than air, it should not be collected via a downwards delivery method.
Answer:
a complex of vesicles and folded membranes within the cytoplasm of most eukaryotic cells, involved in secretion and intracellular transport.
A phenotype is a "set of observable characteristics of an individual"
hope this helps :D
The answer is C: a pollutant.
The answer that makes the most sense of the 4 given is "producers".