Which is a biological effect of low exposure to radiation? dna damage cell, tissue, and organ death death of the organism acute radiation syndrome

In the space, show a correct numerical setup for calculating the number of moles of co2 present in 11 grams of co2

15. which of the following is not human-caused groundwater pollution? a. water in an aquifer dissolves elements such as arsenic and mercury from surrounding rock. b. water in an aquifer is contaminated by leachate that seeps into the ground from a landfill. c. water in an aquifer becomes polluted with chemicals used in hydraulic fracturing, or fracking. d. water in an aquifer absorbs harmful bacteria from the drainage field of a septic tank.

Which of the following is not true about the atomic model of substances?