We live in the Eon, Era, and period.
A) Phanerozoic, Cenozoic, Quaternary
B) Ph...
Biology, 05.05.2020 02:46 snikergrace
We live in the Eon, Era, and period.
A) Phanerozoic, Cenozoic, Quaternary
B) Phanerozoic, Mesozoic, Jurassic
C)Cenozoic, Phanerozoic, Quaternary
D) Mesozoic, Carboniferous, Phanerozoic
Answers: 3
Biology, 22.06.2019 10:10, NewKidnewlessons
20 point pls brianliest 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 21:00, khaz1430
Hydrogen has only one electron in its only (and outer) electron shell. if a hydrogen atom were to absorb a small amount of energy, where would bohr say the electron would go? a. fly off the atom b. nowhere, it would just speed up. c. spiral inwards towards the nucleus d. move up to another shell that would form
Answers: 2
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