Layer Z is found at a depth of 50 to 2,900 kilometers (km) inside Earth. What is Layer X called and where is it found? A. It is the core, and it is found less than 50 km below Earth’s surface.
B. It is the crust, and it is found less than 50 km below Earth’s surface.
C. It is the core, and it is found more than 2,900 km below Earth’s surface.
D. It is the crust, and it is found more than 2,900 km below Earth’s surface.

What best describes lactic acid fermentation?

Ais a landform that is formed at the mouth of a river from the deposition of sediment carried by the river as the water flows.

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?