Well, many addictive substances may be extracted from plants, but primarily, forests aren't source of drugs, because such plants are cultivated illegally on hidden areas.
Forests are sources of life, wild life, wonderful trees, creeks, rivers, lakes, but mainly, a lot of trees which are a source of wood.
Forests are the source of oxygen. Without oxygen there would be no ozone.
they are the primary source of our air suply
for some animals and people it is not for all
Rain forest (jungles), temperate forests, grasslands, and other forests depending on the food source.
Tropical rain forests are an important source of water to the land and animals that live in there. If the rain forest didn't rain anymore then all the plants and animals die. :(
the water source for the coniferous forest are the mountains wen it snows tat water melts
Forests are a source of cellulose products for wood (lumber) and paper. These industries use forests as sources of raw materials. Forests occupy land which may be seen as being better used as farmland and have to be removed.
The vast majority of chop sticks are made from bamboo which is a renewable source. So I doubt that chop sticks have any effect on the forests.
The Opium poppy plant.
The War against Drugs.
mexico
sources are as follow biological(animal) source plant source mineral source marine source plant tissue culture techniques