Biology, 28.07.2019 22:10 ElizabethF

What was two of james cook’s theories?

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the suspected discovery of the hms endeavour could spell the end for a long debate about the famous vessel's final resting place.

key points:

us archaeologists say they have discovered the hms endeavour

theories have circulated for years over the ship's resting place

one theory says ship is at bottom of the thames in london

sydney historian "cautiously optimisitic" over the us discovery

researchers say they may have found the remains of the ship on which captain james cook first discovered the eastern coastline of australia.

the ship was last seen in 1778, by which time it was being used as a transport ship during the american revolution.

us archaeologists have said they may have discovered the ship's wreck off the coast of rhode island, where they believe it was scuttled at newport harbour.

websites such as that run by the captain cook society, have played host to long discussions about where the vessel could lay.

explanation:

Answer from: Quest

C- a hypothesis or d- an observation

Answer from: Quest

answer: carbon 14 can only be used to determine the age of the organisms that were once living, and igneous rocks are non living.

explanation:

carbon 14 dating is used to determine the age of the sample by estimating the amount of carbon 14 present in the sample and then comparing it with a reference standard.carbon 14 is a isotope of carbon which is radioactive and unstable. carbon 14 is assimilated by all plants and animals throughout their life from carbon dioxide. however, one the organisms die they stop this assimilation and the carbon 14 content starts to decrease.by knowing how much of carbon 14 is left in an organism after his death, one can estimate the age of the organism. the materials whose age can be estimated by carbon 14 method are the organic compounds. however, some inorganic compounds such as aragonite shell can also be dated.however, if we consider the igneous rocks it is a non living component which never accumulated carbon 14 in it and thus, we cannot use carbon 14 dating method to estimate its age.

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