Give that the half-life of the radioisotope carbon -14 is 5730 years , how useful do you think this this isotope would be for dating bones that are over a million years old ?

Convert 0.14 kilograms to grams.grams

Which would happen if more forests were cut down? a. the nitrogen cycle would be stopped b. nitrogen would be fixed by bacteria more quickly c. the amount of co2 in the atmosphere would increase d. fossil fuels would build up in the soil c the amount of co2 in the atmosphere would increase

Which heredity condition causes a buildup of mucus in lungs and pancreas? a. cystic fibrosis b. heart disease c. huntington's disease d. sickle cell anemia