| A | B |
| dry farming | way of farming in dry areas that produces crops without irrigation |
| acid rain | rain which has been contaminated by chemicals in the atmosphere |
| meltwater | melting snow which can carry pollutants which were placed on the snow during winter |
| acid deposition | wet or dry acid polllution that falls to the ground |
| global warming | general warming of the climate due to chemicals in the atmosphere |
| clear-cutting | taking out whole forests when harvesting timber |
| overfishing | amt of fish caught exceeds the amt that can be resupplied |
| acid rain | precipitation carrying high amts of acidic materials |
| eutrophication | bodies of water become covered with algae |
| smog | visible haze, damages plants and people's eyes, throats, and lungs |
| biomass | plant materials and animal dung collected and burned for fuel |
| cash crop | a crop raised for sale rather than personal consumption |
| ecotourism | encourages responsible interaction with the environment |
| cottage industry | a business that employs workers in their homes |
| green revolution | a program to increase higher yields of wheat, rice, and other crops |