What causes a whirlpool in nature?

What four factors affect the rate of diffusion? A female polar bear reproductive system? What is the role of variation in DNA? Why metabolic acidosis in massive haemorrhage? What is shape of the chalk? What tide occurs when the sun is at right angles to the line between earth and the moon? What does a car and the human anatomy have in common? If a material melts at 1200 F and is now at 900 F what fraction is that of its melting point? Compare what happens when a geyser erupts happens when a tea kettle whistles? Predict the outcome of incubating inoculated streak and pour plates in the upright rather than the inverted position? Can you add a shower drain to a tub drain or does it need its own waste and vent line? What is the biological importance of variegated plants? What Weather occurs as a warm front moves through an area? What body in space orbits a star and is smaller than a planet? What are not property of a pure substance? Select a plant you can easily observe day after day. For one week observe this plant and write about your observations in a plant journal. Look for examples of tropism and responses to stimuli such as? Does chlorine released from natural sources cause ozone depletion? How do you know oxygen is slightly soluble in water? What are the disasters in palau? What is the layer above the Earth's surface?