Which process(es) of the water cycle— precipitation, evaporation, condensation, runoff, percolation or transpiration— that might contribute to the addition of pollutants to rivers, lakes, oceans? why?

Runoff percipatation contributes to the dirty water because the rain water picks pollutants from the water and than it falls to the earth and than water continues and spreads into the large body of waters

a. as the temperature increases, the kinetic energy of the gas molecules increases & the molecules move faster & further away from each other.

b. if you decrease the temperature of a fixed amount of gas at constant pressure, the combined gas law reduces to charles's law. in this case, volume will also decrease.

the solute can move "downhill," from regions of higher to lower concentration, relying on the specificity of the protein carrier to pass through the membrane. this process is called passive transport or facilitated diffusion, and does not require energy.