In the cycle that shapes Earth's surface, which event must happen before erosion can occur?
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Biology, 22.06.2019 08:00
Explain why biological control methods are generally environmentally superior to chemical pest control methods.
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The main ingredient of magma is a pahoehoe. b silca c dissolved gases d obsidian
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Veronica and her little sister, monique, are playing on a seesaw. if veronica weighs 75 pounds, and monique weighs 60 pounds, which statement is true?
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1. beginning with all chambers of the heart in the "relaxed" phase, describe the cardiac cycle in mammals, with systole and diastole of the atria and ventricles. for each time point in the cycle you select, state the following: • whether the atria and ventricles are contracting or relaxing • whether the av valves and semilunar valves are closed or open • whether the pressure in the atria and ventricles is high or low
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