The world’s population has been growing exponentially. How might this trend in human population growth be considered a tragedy of the common?

A. People have more in common than they realize
B. People overuse air, water, land, and food resources
C. Each birth adds another person to the population
D. Each person cannot avoid eventual death from old age

How many chromosomes are in a gold fish?

20 the compound al(nh3)2 has atoms of nitrogen.

Which of the following is likely not involved in this example of ecological succession? a) the rotting remains of plants add to the fertility of the soil. b)the soil becomes so fertile that eel grass is replaced by other plant species. c) the roots from plants stabilize the sediment, keeping it in place. d) the concentration of salt becomes so high that all plant life is destroyed.