Atruck carrying petroleum collided with a tree and has been leaking gas since the collision. ecologists suggest the use of microorganisms to prevent soil pollution due to the leakage. which method are the ecologists suggesting should be used?

The method ecologists are suggesting is bio-remediation.

Explanation:

The treatment of contaminated or polluted areas such as any surface material, water or soil by using microorganisms is termed as bio-remediation. The microorganisms tend to degrade the pollutants. Also, the method of bio remediation is cheaper then any other alternative methods. Another subtle advantage of using the method of bio remediation over other methods is that the microorganisms can be genetically engineered to degrade certain type of pollutant.

he forelimbs below belong to four species that descended in a direct line from the ancestral mammal shown above. of the four descendants shown, which species most likely appeared earliest in evolutionary history?