Acid rain is becoming more and more of a for our world. Outside of industrial pollutants, like nitrogenous and sulfuric oxides, even excess carbon dioxide can affect the pH of rainwater. One question ...
Tree: large ligneous plant whose stem is bare lose to the ground and carries branches at its top. See more
Tree - Visual Dictionary - Copyright © 2005-2016 - All rights reserved.
Germination - bean: the development of a seed from its embryonic form to the birth of a new plant. See more
Germination - bean - Visual Dictionary - Copyright © 2005-2016 - All rights reserved.
Seed: edible fruit, almost without exception seeds of the Graminae family. See more
Seed - Visual Dictionary - Copyright © 2005-2016 - All rights reserved.