What is the most probable cause of weak suction in a vacuum cleaner if the hose, the bag, and the filter are not clogged

Each autumn the forest floor is covered by leaves that have fallen from trees which type of organisms is most effective in decomposing the leaf tissue allowing the nutrients and minerals to be recycled in the environment?

What is the function of the organelle labeled a in the diagram?

Which of the following entities ensure that national security policies are carried out? check all that apply.