This downward movement of cold water in hot water demonstrates convection. in which of the earth's systems is heat distributed by convection?

What mass of carbon dioxide is produced from the complete combustion of 4.50×10−3 g of methane?

You have 125g of a certain seasoning and are told that it contains 76.0 g of salt what is the percentage of salt by mass in this seasoning

56.16 gregor mendel was the first scientist to use statistics to analyze scientific data. before mendel's experiments, scientists believed that organisms acquired traits from their environment and passed them on to their offspring. after mendel's discoveries were accepted, scientists realized that traits passed to offspring were the result of genes being passed from parents to offspring. this is an example of pls