i believe the answer would be self directed .
-Pencils were first used in 1662.
-Graphite is a crystalline form of the element carbon with its atoms arranged in a hexagonal structure.
- HB is a graphite hardness/grading scale: the higher the number next to H, the harder and lighter/less dark the pencil lead is.
- The H stands for “hard.”
Scientist can look at foods that have bacteria or increased diseases so they can prevent future sickness in the future by observation so it improves nutrition
Paying unemployment is not a benefit, but a legal necessity.
health insurance is a benefit