Answers: 3
Biology, 22.06.2019 09:40, kenldykido2300
Me 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 14:30, llamawrench7366
Which describes the changes in the earths motion?
Answers: 3
Biology, 22.06.2019 14:40, leenzazou98241
In general, characteristics that an organism survive and reproduce become more common in a population over time. what mechanism of evolution cause this change?
Answers: 1
How many species does a wolf affect?...
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