1. What is the best most obvious observation from this photo that this is a pond or lake 2. What evidence is there of the abiotic factor of sunlight in this ecosystem?
3. What producer supports the food chains in this ecosystem?
4. What would this ecosystem look like if nutrias were present?
5. What type of human activity could negatively impact this ecosystem? how?

the national environmental policy act (nepa) is a united states environmental law that promotes the enhancement of the environment and established the president's council on environmental quality (ceq). the law was enacted on january 1, 1970. to date, more than 100 nations around the world have enacted national environmental policies modeled after nepa.

answer; ///(b) it is composed of four protein chains and four heme groups;

you must remain stopped until the stop signal is retracted and the red lights are turned off. approaching traffic in the opposite roadway of a divided highway shall not be required to stop, even if the school bus has the stop-arm extended and the alternately flashing warning signal lamps on.