Answer:
The material which is likely to slow the flow of electric charges the most is PVC plastic ‾ \text{\underline{PVC plastic}} PVC plastic.
Explanation:
brainlist please
Answer: Because hydrogen is a gas.
Explanation: If children were running around with balloons filled with hydrogen gas, then they would catch fire. So the answer to your question is, its simply dangerous.
The best answer choice you could go for is B pure substance, a pure substance is a compound that is made of one element, like a diamond.