The chalfont soils are a distinct group of soils found in pennsylvania, new jersey, and maryland. the parent material for these soils is made of silt-sized particles. these particles were originally deposited by glaciers and then later eroded and redeposited in their current location by the wind. which of the following terms best describes the chalfont soils' parent material? a. topsoil b. humus c. loam d. loess

Air pressure is measured in pascals. for a professional american football game, the ball should be inflated to about 90,000 pascals. scientists studied the effects of air temperature on the pressure inside american footballs by taking these steps: 1. prepare 100 footballs. 2. measure each football's air pressure. 3. divide footballs into 10 groups. 4. place the groups in different lockers cooled to different air temperatures. 5. after 12 hours, remove the footballs from lockers. 6. measure each football's pressure again. 7. compare the new pressures to the starting pressures. what two terms best describe the variable "air pressure inside the football" in this experiment? independent, qualitative independent, quantitative dependent, qualitative dependent, quantitative