L
Starting billions of years ago, algae lowered the
atmosphere.

answer: you could do some invislibe ink.

explanation: i will tell you how to if u answer my question.

your answer is a. the enthalpy of formation for a pure element in its standard state is always positive.

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.