Which is an unintended consequence of the widespread use of pesticides on corn crops?

increased amount of corn grown each year
the rise of pesticide–resistant insects
decreased cost of producing corn
the deaths of insects that feed on corn

Oxygen undergoes an isentropic expansion from 120 degree c and 280 kpa absolute to 140 kpa absolute. determine the final temperature of the oxygen and the amount of work per kg of o_2 produced in the process if it is adiabatic.

Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt

A14 kg rock starting from rest free falls through a distance of 5.0 m with no air resistance. find the momentum change of the rock caused by its fall and the resulting change in the magnitude of earths velocity. earth mass is 6.0 * 10^24 kg. show your work assuming the rock earth system is closed.