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Acidic gastric juices, which are secreted by the gastric glands in the stomach, help in mixing chewed food and in turning it intoa partial liquid
The plates, or layers of the Earth's crust rub together, pull apart, collide or dive under one another
Earth rotates or spins toward the east
The Sun, the Moon, the planets, and the stars all rise in the east
updrafts and downdrafts during a thunderstorm mixed accompanied by counter-clockwise air flow
the outer layer of skin separates from the inner layers due to friction and the space between fills with lymph fluid
Mount St. Helens, an active volcano, erupted in 1980
dust filled the air and it was difficult to breathe
When the volcano erupted, hot lava flowed out
snow snow melted on the mountain causing flooding and landslides
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