To take a screenshot on your Motorola Moto G, simply press and hold both the Power button and the Volume Down button simultaneously for two seconds. You will see a preview of the screenshot taken as well as a notification telling you the screenshot was successful. Your new screenshot can be found in the Album application under the folder “Screenshots”.
This method refers to the following models: XT1540, XT1541, XT1542, XT1543, XT1544, XT1548, XT1550