Biology, 22.07.2019 00:30 noahslambeenie359
Need asap will mark sully works as a geologist in the southwestern united states. he plans to choose an unstable isotope to find the absolute age of a rock sample. which two aspects must he consider before making his choice? (more than 1) 1. there should be a sufficient amount of the selected isotope in the rock. 2. the isotope should be one that decays at a very fast rate. 3. the isotope must not be found in any neighboring rocks. 4. the half-life of the isotope must be long enough to capture the age of the rock. 5. there should be more than one unstable isotope in the rock.
Answers: 2
Biology, 21.06.2019 23:00
Me . based on the data in your tables, did the light-colored moths have a higher or lower survival rate after the industrial revolution?
Answers: 1
Biology, 22.06.2019 01:30
Were does condensation occur? a) hydroshereb) lithosherec) boishered) atmosphere
Answers: 1
Biology, 22.06.2019 04:00
Why are fossils not found in igneous rocks? igneous rocks are made from cooling of lava or magma. igneous rocks are found too deep underground. igneous rocks are too dark in color to contain fossils. igneous rocks are too dense to contain fossils.
Answers: 2
Biology, 22.06.2019 12:30
Which of the following is a reason why early living organisms on earth could not have survived on the surface? 1. the lack of an ozone layer 2. the lack of oxygen in the atmosphere 3. the fact that these organisms were single-celled
Answers: 1
Need asap will mark sully works as a geologist in the southwestern united states. he plans to choo...
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