Will give brainliest which ones are the examples of factors that can affect environmental pressure?

1.the amount of sun available to plants

2.amount of water

3.predation

4.population size

What is the importance of having the us forest service, the bureau of land management, the us fish and wildlife service, and the national park service? to manage land resources for conservation and the development of natural resources to manage land resources for conservation and the development of urban areas to preserve historical landmarks and manage the development of urban areas to preserve historical landmarks and manage the development of rural areas