-In some cities, a pollution check has been made compulsory for vehicles. And mske a report about the process of conducting a pollution check. You may systematically record your findings in the following areas: )Average number of vehicles checked per month. )Time taken to check each vehicle. i) Pollutants checked for. iv) The process of testing. v) Permissible levels of emission of various gases. vi)Measures taken if the emitted gases are above the permissible limits. vii) How frequently is a pollution check required ? pls answer in detail

1) this is the structure in the cell nucleus that houses a cell's genetic information

The atomic radius of sodium is 186 pm and of chlorine is 100 pm. the ionic radius for na+ is 102 pm and for cl– is 181 pm. in going from na to cl in period 3, why does the atomic radius decrease while the ionic radius increases? a. the inner electrons in the sodium cation shield its valence electrons more effectively than the inner electrons in the chloride anion do. b. the inner electrons shield the valence electrons more effectively in the chlorine atom than in the chloride anion. c. the outermost electrons in chloride experience a smaller effective nuclear charge than those in the sodium cation do. d. the outermost electrons in chloride experience a larger effective nuclear charge than those in the sodium cation do. e. monatomic ions are bigger than the atoms from which they are formed.

How many moles of oxygen react with 12 moles of aluminum