What role do decomposers play in the carbon and nitrogen cycles?

• They recycle nutrients from dead organisms back into the environment
• They produce nutrients for the environment
• They gain energy from the sun
• They are predators that eat small prey to balance the food chain

Heat from earths interior and pressure from overlying rock transform the remains of marine sediments into

Development of new communities in disturbed environments, such as a burned or a clear cut forest, is called

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?