First one who answers this correctly will be marked brainliest, , and 5 stars will be given!

what is the best description of a convergent boundary?

a) plates that move away from each other

b) plates that are attracted to each other by gravity

c) plates that move toward each other

d) plates that move side by side past each other

Blood has traveled from the heart to the toes. which describes the next step of the circulation process?

All eukaryotic cells contain small bodies called

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?