Someone help pls hurry for Fahrenheit 451

How many times do you read a text when you use the close reading model?i am desperate

This device blocks an opening along the base/floor of stairs or other walking or working surfaces where materials or body parts might otherwise inadvertently fall through. it should be 4 inches high, with not more than ¼ inch clearance above the floor

Yes or no? biology is the study of rocks and minerals.