high temperature in metals leads to decrease in conductivity while increase in Temperature conductivity in semiconductor increases, why?​

Ais useful when you need a simple machine to you separate two things. a. lever b. screw c. pulley d. wedge

Which of the following statements are evidence that gases do not always behave ideally? check all that apply.? a. co2 gas becomes dry ice (solid co2) at 1 atm and –78.5 °c. b. when two gases are mixed, they follow dalton\'s law of partial pressures. c. at 4 k and 1 atm, helium is a liquid. d. it is impossible to compress a gas enough so that it takes up no volume.

Define the terms moral development and moral reasoning.