The bones of this pterosaur were studied for carbon-14 levels was 1/4 the original amount. if carbon-14 has a half life of 10,000 years, how old are these specimen?

Describe five factors that influence the value of fuel

20 points and brainlist 1. london has suffered from terrible air pollution for at least seven centuries. why is the city so prone to its famous “london fog? ” what did london do to get rid of its air pollution? 2. why does air pollution cause problems in developing nations more than in developed ones?

Agenus is a taxonomic grouping that identifies a collection of species. when a scientist discovers a new species, how is this species assigned to a genus