It would be emerald, emerald is a very common price of jewlery used
The term bioinvasion means that a plant or animal is not native in their current location and often spreads to a dangerous degree which is harmful to it's new environment, to the economy and to human health. An example of this is the Asian longhorned beetle which infected and damaged millions of acres of hardwood trees, as it was introduced in the United States.
His experiment can show <span>movement of pollutants through the groundwater!</span>
