Noam is building an aquarium. he needs to install a system to isolate biological matter and keep the water from getting too dirty. the water is continuously fed through the separation system, and the clean filtrate is allowed to flow back into the aquarium. should he use a screen or a filter? explain at least one advantage and one disadvantage of each.

Which situation is an example of not doing work? lifting a couch throwing a baseball running up stairs carrying a box

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?

Which benefit of the community experience when its members have a hide level of health literacy