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Answers: 3
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, 22.06.2019 16:50
Which of the following is not a challenge to instituting sound global environmental policies? a. most changes are inexpensive and easy to implement. b. elected leaders who support unpopular environmental issues often are not re-elected. c. economic considerations outweigh environmental ones in many societies. d. there is no way to enforce international environmental agreements.
Answers: 2
Geography, 23.06.2019 06:30
Rescooperate ice cream shop recently analyzed their books. they found that in the past year, they made 100000 selling ice cream and spent 75000 on supplies and factory space. the remaining 25000 represents
Answers: 2
English, 30.10.2019 02:31
Chemistry, 30.10.2019 02:31
Mathematics, 30.10.2019 02:31
Mathematics, 30.10.2019 02:31
Mathematics, 30.10.2019 02:31
Medicine, 30.10.2019 02:31
Mathematics, 30.10.2019 02:31
Mathematics, 30.10.2019 02:31