Ageologist finds rocks with dinosaur fossils.
what is most likely the approximate age of the rocks?
a.
1 thousand years old
b.
500 million years old
c.
70 million years old
d.
5 billion years old

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

What events caused the united states to intervene in southwest asia?

Identify, in detail, three environmental effects of agriculture and explain how the actions of farmers cause them. what is the relationship between poverty and obesity in america and why? what are genetically modified organisms? list two pros and two cons for using genetically modified organisms. y'all this is due !