How free trade rather than protectionism can favour countries.​

Explanation:

Free trade is good for consumers. It reduces prices by eliminating tariffs and increasing competition. ... In principle, this will make goods and services cheaper. In contrast, protectionism can result in destructive trade wars that increase costs and uncertainty as each side attempts to protect its own economy.

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.