Human burning fossil fuels is an example of which type of weathering?

Endeleev saw trends in the physical and chemical properties of elements when he organized them by

Maria wants to determine which type of disinfectant kills the most bacteria. which of the following is the best way for maria to determine this? a. ask ten different companies that make disinfectants which type is best. b. put the same amount and species of bacteria on ten identical plates, and add ten different kinds of disinfectant to each plate. c. interview ten different people to determine which type of disinfectant they prefer. d. put the same amount and species of bacteria on ten identical plates, and add a different disinfectant to each plate.

40dm3 of gas at 760 torr are heated from 5°c to 50°c what is the new volume