At some sites, the weather is too cold or the soil is too dense. At such sites, what might the EPA do to the soil to clean it? a
Use only chemical solutions to clean the contaminants
b
Excavate the soil by digging it out and treat it off site
c
Use drills to mix it with the existing soil while pulling it to the surface where it can be treated
d
Saturate the soil with water to draw the contaminants to the surface

An ideal otto cycle with air as the working fluid has a compression ratio of 8. the minimum and maximum temperatures in the cycle are 300 k and 1340 k. use constant specific heats at room temperature to determine (a) the amount of heat transferred to the air during the heat- addition kj/kg, (b) the thermal efficiency, and (c) the thermal efficiency of a carnot cycle ope limits. process, in rating between the same temperature