How did permanent settlements lead to job specialization among the community members?

Uranium-238 decays very slowly, with a half-life of 4.47 billion years. what percentage of a example of uranium-238 would remain after 13.4 billion years

Which of the following discoveries would be most likely to cause a scientific paradigm shift? a. the discovery of more rings around uranus b. the discovery of a new pathogenic virus transmitted by mosquitoes c. the discovery that a dormant volcano is showing signs of activity d. the discovery of a new species of salamander in the amazon rainforest e. the discovery that excess heat is radiating from the center of the earth and causing global climate change

Do you believe kinship relationships still have significance in contemporary america?