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USGS Frequently Asked Questions
FAQ's about Vegetation
How far has Chinese tallow spread in the United States?
How do Chinese tallow's characteristics make it such an aggressive invader?
Is Brown Marsh dead marsh?
Where along Louisiana's coast are marshes affected by the Brown Marsh phenomenon?
What is the Brown Marsh phenomenon?
How is Chinese tallow spread?
What products can be created with Chinese tallow?
Where can I find information on gypsy moths?
Are there regulatory limits for safe levels of elements in our environment?
Does red in ASTER images always represent vegetation?
How did Chinese tallow come to America?
How can I find wetland maps?
What are the permissible levels of trace elements (such as arsenic, copper, iron, lead, and zinc) in water for the water to still be considered safe for exposure/bioaccumulation by people and aquatic life?
Why are some lakes I see full of algae and thick plants?
What problems are associated with mine drainage?
What are some positive products from volcanoes?
What elements are harmful to living organisms and how do they get into our environment?
What elements are required by animals and plants for survival?
How can I find the scientific names of plants and animals?
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U.S. Geological Survey