Identify a food chain that consists of a producer, a primary consumer ,a secondary consumer

Explain how earth is like a giant bar magnet. how is our magnetic field made?

Aconstruction crew was made up of 88 men and the rest women. if 40% of the crew were men, how many people were in the crew?

How should the syntax in this sentence be changed, if at all? the scientists spent years analyzing the results of numerous medical studies meant to identify the cause of the disease. no change the scientists spent years looking at the results of a variety of different medical studies meant to locate the cause of the disease. the scientists spent years reviewing medical study results to find the cause of the disease. the scientists spent years studying the results of many medical studies in order to uncover the cause of the disease.