Answers: 1
Geography, 22.06.2019 14:40
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
Answers: 2
Geography, 24.06.2019 06:30
b) is there any ordinal sense to zip codes? in other words, does a larger zip code tell you anything about a location compared to a smaller zip code?
Answers: 3
Geography, 24.06.2019 09:00
What effect has the drug trade had on some governments in middle and south america? a. it has funded political instability. b. many nations have created democratic governments. c. many governments have allowed the drug trade to fund local programs. d. it has funded political stability.
Answers: 1
(SCIENCE) Why does pressure change inside of earth? Plss pls answer ASAP!...
Mathematics, 03.07.2019 12:30
Mathematics, 03.07.2019 12:30
History, 03.07.2019 12:30
Chemistry, 03.07.2019 12:30
History, 03.07.2019 12:30