Quem dia os salvadores do povo de ele salvador??

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 of the following is a way that advancements in technology improve humans' ability to measure air quality and protect human health?

Under which condition below would u expect a coarse-grained intrusive rock like diorite to form?