Which of the following is a secondary pollutant? A. Water vapor from a factory smokestack
B. Particulate matter, such as soot
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C. Carbon monoxide from car exhaust
D. Acid rain

a police officer and a ambulance

"record the time to complete a chemical reaction" would most likely be part of a lab procedure.

a saline water is fed to a reverse osmosis unit at flow rate o rotameter connected to reject (retentate) line reads 8 installed in reject and permeate line reads 15.2 milli siemens/cm and 300 micro siemens/com respectively.

answer: i have one answer

acids are substances that ionize (break off) in an aqueous solution to produce hydrogen (h+) ions

explanation:

hope this and sorry i could only come up with one answer!