Values of various substance throug testing

The basic tool for determining toxicity of substances to marine and aquatic organisms is the toxicity test. In its simplest form, toxicity testing is taking healthy organisms from a container of clean water and placing into one containing the same water with a known concentration of a pollutant.

Explanation:

Silicon is cut into tiny pieces for computer chipslead is melted to form pelletsliquid water freezes to form ice

We can use solar powered cars or ride bikes instead of cars that burn fossil fuels