What is an enclosed body of coastal water that is a mixture of salt water and freshwater called?

Geologists know that potassium-40 decays to argon-40, with a half-life of 1.3 billion years. if an analysis of a feldspar crystal in a sample of granite shows that 75 percent of the potassium-40 atoms have decayed to form argon-40, what is the age of the granite

Which domain endings indicate websites that are most likely to be reliable sources? check all that apply. sites ending in .net

In which horizon of soil profile is prevent material usually found