List down how many division are there in non flowering plants​

Ecologist have observed a sharp increase of sulfur dioxide in the air . what might be a possible consequence of excessive sulfur dioxide in the air ? a. acid rain b. ozone layer depletion c. ozone layer hole d. increase in sea levels

What's the waste product of electrons and pyruvate combining in fermentation?  

Select the word from the list that best fits the definition the temperature to which air must cool to be saturated