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Biology, 22.06.2019 09:00
Which two criteria must be met before scientist can use radiocarbon dating? explain your answer
Answers: 3
Biology, 22.06.2019 09:40
80 points pls brainliest 1. what does a red shift mean? blue shift? 2. describe the big bang theory. according to this theory, how old is the universe? 3. scientists believe the universe is expanding. what is the evidence that supports this? 4. describe a nebula. 5. describe the 3 types of galaxies. what is a barred spiral galaxy? 6. what is a light year? how far is alpha centauri from earth? 7. describe the universal law of gravitation. be sure to include gravitational force between two objects. 8. describe the planets’ orbits around the sun. 9. what is the asteroid belt? where is it located? 10. describe rotation and revolution of earth. what determines an earth day and year? 11. how do galaxies exist? 12. compare and contrast the inner and outer planets. 13. what causes the seasons?
Answers: 1
Biology, 22.06.2019 10:30
There are fewer than 100 naturally occurring elements in the universe, but there are millions of different unified substances. explain how this can be true.
Answers: 1
Type of Organism ||| Autotroph Heterotroph
Other names for ||| |||
this type of Orga...
Other names for ||| |||
this type of Orga...
English, 22.06.2019 03:30
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Mathematics, 22.06.2019 03:30
Mathematics, 22.06.2019 03:30
Mathematics, 22.06.2019 03:30