A teacher is giving a lecture on the changes in world population over the last decade. Which is the best visual aid for the teacher to use?
O a bar graph
O a map
• a line graph
O a diagram

How can you write e method for the experiment of separating sand from water by filtration process? 1-materials 2-steps 3-conclusion also the same for the separating process of water and salt by filtration or distillation. quick because i need to finish my hw