Which of the following serves as evidence of water pollution?   a an abundance of water plants in lakes b increase in temperature c indicator

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Place the following components of the hydrologic cycle in the correct order by numbering them from 1 to 5, beginning with precipitation. a. precipitation b. uptake by plants c. transpiration d. water percolation into soil e. condensation

Fresh Water, Oceans, and Coasts   Describe freshwater, marine, and coastal ecosystems systems What is the effect of human activities on waterways? What is the solution to freshwater depletion? What are the causes and effects of water pollution?

NAAQS may change over time because the ability of the population to resist pollutants changes over time a. the ability of polluters to develop new pollution control technologies improves over time C. both (a) and (b) none of the above

Temperature differences between seasons can be beneficial to the organisms in lakes and ponds which of these is a benefit of seasonal temperature differences