Getting eight hours of sleep each night is an example of a cumulative risk.
True
O False

Why are some galaxies’ spectra blueshifted rather than redshifted? question 4 options:

Name three different units of energy used to measure heat and describe what type of situations each is usually used.

Which statement is the best definition of an atom? a) anything that has mass and occupies space. b) the smallest particle that has the properties of an element. c) a substance that cannot be broken down chemically into simpler substances. eliminate d) the smallest unit of a substance that exhibits all of the properties characteristic of that substance.