Which of the following is an example of how a scientist might use a model? microscopes are used to magnify a group of cells on sets of slides. marbles placed inside a hollow sphere are used to describe protons in a nucleus. a wrench is used to tighten a nut onto a piece of wood.
stopwatches measure the amount of time it takes for runners to complete a mil

Some technological solutions to problems like global warming meet the specific needs and situations of local communities. an example from india involves converting the solid waste from cattle into clean-burning fuel for cooking. this reduces the amount of greenhouse gases, specifically methane and carbon dioxide, released into the environment from wood fires. when evaluating the feasibility of implementing this solution, computer models are used to weigh costs against benefits. what factor is least likely to impact the decision on adopting this technology?

Drag each label to the correct location in the equation. not all tiles will be used. the density of mercury is 13.6 grams per cubic centimeter. complete the steps for converting 13.6 g/cm3 to kg/m3. (1 kg = 1,000 g, 1 m3 = 106 cm3)

Blank is a rock with a find dark texture that makes up the oceanic crust