Which best describes the difference between osmosis and diffusion? a. osmosis is the movement of particles from a high to a low particle concentration, while diffusion is the movement of water from a high to a low water concentration. b. diffusion is the movement of particles from a high to low particle concentration, while osmosis is the movement of water from a high to a low water concentration. c. diffusion is the movement of particles from a low to a high particle concentration, while osmosis is the movement of water from a low to a high water concentration. d. osmosis is the movement of particles from a low to a high particle concentration, while diffusion is the movement of water from a low to a high water concentration.

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?