Exercise 2.115 The mass of fuel in an airplane must be determined before takeoff. A jet contains 15149 L of fuel after it has been filled with fuel. What is the mass of the fuel in kilograms if the fuels density is 0.776g/cm3

the ozone layer acts as a filter for the shorter wavelength and highly hazardous ultraviolet radiation (uvr) from the sun, protecting life on earth from its potentially harmful effects. when the sky is clear, there is an inverse relationship between stratospheric ozone and solar uvr measured at the earth's surface.

aquifers are bounded above and below by impermeable rock. the driving force of groundwater movement in confined aquifers is pressure, rather than gravity.

it forms an anion that has a larger radius. anions have a negative charge and are larger than the original atom.