Which of the following best describes the long-term impact of using a nonrenewable energy source? a) burning biomass to produce energy releases greenhouse gases. b) petroleum absorbs carbon dioxide and pollutes water supplies. c) nuclear power produces radiation that would be harmful if leaked. d) geothermal energy can disrupt the water table and harm water supplies. note: it's not b

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

which

what is a measurement of the earth’s history divided into time periods?

> fossil record <

sedimentary rock

> geologic time scale <

radioactive elements