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Cubangbang #129283

Cubangbang's 7thB Ch.23 Natural Resources Stack #129283

euthanasia the killing of people who are old or very sick.
Populatin decrease if the death rate increases or if the birthrate decreases
Population increase if the birthrate increases or if the deathrate decreases
Crop rotation a method of farming in which a farmer changes the kinds of crops he grows in a particular field every year or 2
Legumes bacteria living in the roots
Fertilizer a substance that contains the nutrients needed by plants
Birthrate the rate at which members enter a population
Deathrate the rate at which members leave a population
Endangered species a species that may soon become extinct if man does not take care of it
Created by: jcubangbang