Biology, 01.07.2019 20:30 ineedhelp2285
What does it mean when a mineral has a definite chemical composition? check that all apply it always occurs in pure form. it always contains certain elements. it cannot form from living or once living materials. it always contains elements in definite proportions. it cannot contain atoms from more than one element
Answers: 2
Another question on Biology
Biology, 21.06.2019 23:30
The table shows dates and appearance of index fossils. which rock layers can be dated most precisely? a) a layer containing both a fossil 4 and a fossil 3 b) a layer containing both a fossil 2 and a fossil 3 c) a layer containing both a fossil 1 and a fossil 4 d) a layer containing both a fossil 1 and a fossil 2
Answers: 2
Biology, 22.06.2019 10:00
Which process in respiration happens first? a)pyruvate processing b)electron transport chain c)krebs cycle d)glycolysis
Answers: 1
Biology, 22.06.2019 11:30
Ihave no idea how to solve these. plus there's another question that is 2) a 10 kilogram meteorite is collected in space and brought back to earth. it is composed of 1.25 kg of uranium-238 and 8.75 kg of lead-206. how many u-238 half lives have passed? what is the approximate age of the meteorite?
Answers: 1
Biology, 22.06.2019 19:30
Explain what is meant by a river’s load, and describe how the load is carried.
Answers: 1
You know the right answer?
What does it mean when a mineral has a definite chemical composition? check that all apply it alwa...
Questions
Mathematics, 03.05.2020 13:11
Mathematics, 03.05.2020 13:11
Mathematics, 03.05.2020 13:11
History, 03.05.2020 13:12
History, 03.05.2020 13:12
Law, 03.05.2020 13:12
Mathematics, 03.05.2020 13:12
Mathematics, 03.05.2020 13:12
Biology, 03.05.2020 13:12
Biology, 03.05.2020 13:12
Mathematics, 03.05.2020 13:12
Social Studies, 03.05.2020 13:12
Chemistry, 03.05.2020 13:12
