Scientists use many different methods of investigation. When possible, scientists want to actually experiment or observe an event. Which method is useful when developing a scientific explanation for an event that cannot be studied directly? A. Conduct a field survey of bird populations in an area. B. Observe the effect of various fertilizers on corn crop yields. C. Use a computer model to study how the ocean liner Titanic sank. D. Use a wind tunnel to measure air drag on various types of automobiles.

did you mean: energy is defined ashyperactivitya caloric measurementthe ability to move matterthe ability to think and analyze this form of energy is called "energy in motion" or "energy of moving matter"potential energy kinetic energy electrical energy1 ptlights on a stage can be examples of all of the following forms of energy exceptelectrical energylight energythermal energysound energywhen one type of energy changes to another this is called energy energy is stored based on their position or shape this is called energy.kinetic potential sound electromagnetic

any abiotic or biotic factor in an ecosystem that causes a population's size to slow or decrease is a limiting factor.

maybe because its impossible for balloons to lift a whole entire house.