Which statements about this diagram are true? check all that apply. layers 5 and 7 are the same age. faulting created the differences in layers. erosion created the differences in layers. layers 2 and 9 are the same age. the organisms in 1 and 8 lived tens of millions of years apart.

How does friction with the atmosphere affect the speed of an artificial satellite

This is a situation in which genes are attached to an organism's sex chromosomes; the sex of an organism influences the expression of a gene.

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?