Studies of sedimentry rocks and fossils have rocks and fossils have scientists understand the history of earth how is geolagic time organized on the geolagic time scale

Which is a result of the emission from the use of fossil fuel

Rainbow trout is non- native to the united states. however this species is breeding with the native gula yltrout acientistrecently observed that the hola trout were becoming exitinct what is the cause of their extinction

What two advantages do the coastal countries of west africa have over the sahel countriesfertile soil and mineral resources temperatures and terrain human resources and natural resources weather patterns and location