If you are able to say that one rock is older or younger than another or one fossil is older or younger than another, what type of age are you using?
a elementary age
b relative age
c sedimentary age
d absolute age

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

Ahis which describe the horizons in a soil profile? check all that apply. horizon a is mineral deficient. bedrock lies below the soil layers. te horizon o forms from organic material, horizon b undergoes the least amount of change. horizon c is least affected by the soil formation process.

Which phrase describes the time it takes for a planet to make a complete rotation