Kim is creating a model to show how energy moves through an ecosystem. Which of the following could she use to best describe the role that plants play in this process? A. Plants use sunlight to create food for other organisms. B. Plants create carbon dioxide for other organisms. C. Plants remove oxygen from other organisms. D. Plants increase the water temperature for other organisms.

Transportation is the largest single source of air pollution in the united states. air pollution can harm the environment and human health. which technology could offer a solution to this problem? mufflers that reduce noise motors that run on electricity tires that improve gas mileage

What is the main reason why some developing countries fear the increase the free trade policies around the world?

Achemistry student weighs out 0.306 g of citric acid (h3c6h5o7), a triprotic acid, into a 250 ml volumetric flask and dilutes to the mark with distilled water. he plans to titrate the acid with 0.1000 m naoh solution. calculate the volume of naoh solution the student will need to add to reach the final equivalence point. be sure your answer has the correct number of significant digits.