Answer:
hematite, also spelled haematite, heavy and relatively hard oxide mineral, ferric oxide (Fe2O3), that constitutes the most important iron ore because of its high iron content (70 percent) and its abundance.
Explanation:
What help gravitational pull is Actually it's same like drinking coke through straw. Transpiration generates a sucking effect. This is called as transpiration pull and it helps in overcoming the gravitational pull downwards.
Id say its the last option. Though im not 100% sure
Grounding and insulation will be the two most recognized means of preventing injury during an electrical equipment operation. The workers should always place a non-conductive material like plastic around the conductor of electricity. When grounding, there needs to be a direct connection to either a cold water pipe or even metal. Without doing either grounding or insulation, there is a chance of burns, shocks, fire, and in extreme cases death.
