Exposure to small amounts of lead<span> over a long period of time is called chronic toxicity. </span>Lead<span> is particularly </span>dangerous<span> because once it gets into a person's system, it is distributed throughout the body just like helpful minerals such as iron, calcium, and zinc. And </span>lead<span> can cause harm wherever it lands in the body.</span>
Shale actually forms in the part of the rock cycle called compaction.
Answer:
concave lens
Explanation:
it's concave lens because it diverges the ray/beam of light.
