Which voice can produce a pitch that has a speed of 343 m/s and a wavelength of 0.68 m? check all that apply. bass baritone tenor contralto sopran

Dalton’s model of an atom is the best described as a) a solar system b) a solid sphere c) a cloud d) a scoop of chocolate chip ice cream

Avolcano erupts next to a grassland area in a valley. a. describe three ways in which material released by the volcano could impact the grassland area. b. describe three ways in which the grassland ecosystem could recover after a volcanic eruption.

Give one example to show that when substances are mixed,it may result in a chemical or a physical change depending on the conditions.