All are ways to combat water pollution except? ? (a) regulation for water usage in urban areas (b) dumping oil down the drain (c) responsible waste disposal for companies (d) building of wastewater treatment plants

the diploid number of chromosomes is sometimes represented by the symbol 2n. for the fruit fly, the diploid number is 8, which can be written as 2n = 8, where n represents twice the number of chromosomes in a sperm or egg cell.

chert is a sedimentary rock composed of microcrystalline or cryptocrystalline silica. with this little bit of information, you can come to the conclusion that your answer is c.  

explanation: