Joshua is studying about environmental impacts. He has learned about companies polluting the groundwater in most nations. Which example would be categorized as the main source for ground water?

a researcher conducts an experiment on the secretion of a particular hormone in mice. scientists inject mice with a substance that stimulates the production of the hormone. the scientists then test the levels of hormones produced by the mice. the tool used to measure the hormones consistently detects the levels at 10 points lower than the actual hormone levels in the mice. this tool makes measurements, but the measurements aren't .

explanation:

no u

i won't lie i don't know so go online and ask google thats what i do

d we did this already