01: 57: 51
a scientist has a fossil that was found in a layer of rock close to earth’s surface...
Biology, 22.01.2020 07:31 youngboymark123
01: 57: 51
a scientist has a fossil that was found in a layer of rock close to earth’s surface. he believes that the fossil is around 12,000 years old.
which method would best allow the scientist to confirm the actual age of the fossil?
Answers: 3
Biology, 22.06.2019 08:30, lol6998
Cpr, or cardiopulmonary resuscitation, is a first-aid technique to save lives. it involves compressions of the patient's chest cavity. which description is the best description of the functions of chest compressions in cpr? chest compressions are done to pump the heart. chest compressions are done to strengthen the rib bones. chest compressions increase carbon dioxide inhalation. chest compressions allow the patient's muscles to wake up.
Answers: 1
Biology, 22.06.2019 11:30, annsmith66
Ihave no idea how to solve these. plus there's another question that is 2) a 10 kilogram meteorite is collected in space and brought back to earth. it is composed of 1.25 kg of uranium-238 and 8.75 kg of lead-206. how many u-238 half lives have passed? what is the approximate age of the meteorite?
Answers: 1
Biology, 22.06.2019 21:30, desiree6005
The picture below shows two galaxies. spiral galaxy and elliptical galaxy which of these statements best describes a similarity between the two galaxies? (2 points) both have elongated centers. both have centers shaped like bars. both change their shape from time to time. both are held together by gravitational forces.
Answers: 2
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