Lawn fertilizers often contain phosphorus. Sometimes these fertilizers runoff into lakes. Once in a lake, the excess phosphorus may affect algal growth and cause eutrophication in the lake. Which BEST describes how the phosphorus affects the algae?
A. It improves algae adaptability.

B. It increases the number of trophic levels algae occupy.

C. It reduces algae habitat size.

D. It increases the carrying capacity of lakes for algae.

25) a student takes four samples of a white crystalline solid and places each in a well plate. on top of each sample, she carefully places 20 drops of clear mystery liquids a, b, c and d. her results for each well are: liquid a: the solid dissolves quickly. liquid b: the solid appears unchanged. liquid c: a brownish colored liquid is produced. liquid d: fizzing occurs and the well becomes warmer. in which well does a physical change occur?

Which characteristics are typical of a human population in the postindustrial stage?

Amap's orientation is typically determined by an