Atrain is approaching the station. explain what happens to the frequency of the sound as the train draws closer. what do you hear?

3. on your graph, the data points between the black squares are data for elements with atomic numbers 3 through 9. locate these elements on your periodic table. what term or description would you use to identify these elements with respect to the periodic table?

Herbivores, carnivores, and omnivores are all types a. decomposers b. producers c. consumers d. biomes

The volume of a gas is halved during an adiabatic compression that increases the pressure by a factor of 2.5. what is the specific heat ratio? show the math steps .