According to the diagram, what sources contribute to the phosphorus found in soil? according to the diagram, phosphorus found in soil contributes phosphorus to what other sources? (site 1).

How many types of federal student aid are available to students ? a: 3 b: 2 c: 5 d: 10

Which of the following always exist between two objects having mass ● elastic force ● contact force ●gravitational force ●magnetic force

Which scenario describes intraspecific, indirect competition? a. a peacock defends its territory against another peacock. b. lions and hyenas compete for the same prey animals. c. a male black bear eats fish in an area of a lake, so other black bears can’t. d. different species of birds fight over spilled popcorn on the ground.