Thousands of farms are located along the mississippi river and its tributaries through the central u. s. as water washes into the river after a heavy rain, it brings with it nutrients from fertilizers added to farmland. these materials flow downriver and eventually enter the gulf of mexico, where they create conditions for a dead zone — a region of the ecosystem that can’t support any living creatures. this is an example of a tragedy of the commons. why is the dead zone seasonal?

What element does susan b. anthony include in this passage to strengthen her argument?

In the respiration-photosynthesis cycle shown above, what are the products of cellular respiration that belong in box 2?

Group control group #1 experimental group yes yes yes control group #2 no new drug orange juice bed rest no yes no yes ves which of the following is the best explanation of why a second control group was included in this experiment? o a. to provide the volunteers in the study with something to drink o b. to prove that the common cold cannot be cured c. to confuse anyone who is trying to steal their new drug and sell it as their own invention o d. to researchers conclude that results are related to the new drug and not to the orange juice submit e previous