| A | B |
|---|
| succession | process that gradually changes one ecosystem into another |
| reclamation | repairing some damage to an ecosystem |
| conservation | the careful management and wise use of natural resources |
| preservation | protection of an area |
| mosses | first organisms that grow near ponds |
| bacteria | needs few nutrients so it grows first |
| tornado | high speed winds produced by thunderstorms |
| recycling | reduces the amount of trash in the landfills |
| EPA | government agency set up to make sure people obey laws to protect our environment |
