Need help, ASAP, please! The National Park Service Organic Act was signed into law in 1916.

a. How did this act affect the management of parks across the United States? (1 point)

b. How did this act affect national parks ecologically? (2 points)

c. What types of educational opportunities arose from this act? (2 points)

Alarge body of air that has similar temperature, humidity and air pressure at a given height is called a

3. which of the following is not a result of air pollution? a. global warming b. smog c. soil erosion d. breathing problems

Biodiversity can be measured by the number and relative abundance of species in an ecosystem. which potential solution below best addresses the issue of loss of biodiversity in a north american ecosystem? a) introduce fast growing plants light kudzu (from japan) which can become groundcover to prevent erosion. b) identify keystone species in an ecosystem and isolate them in a protected area away from other species. c) remove decomposers by applying fungicide so that more organic material is available to animals and plants. d) inspect ships moving through international waters to prevent the introduction of invasive species, which can potentially outcompete native species