Yes, or you can turn your screan brightnis down.
Yes. Turning off any device when it is not in use will save power and energy.
you can save heat by turning it down
well by turning it off you save about over 1000 volts which could power 2 lights
By turning down the light, deleting history and closing down tabs.
Yes, you can take a screenshot on a Nexus 7 or 10. Simply press the down volume button and power button at the same time. The screen will capture, and it will save in the Gallery.
Hold the volume down and power button at the same time on the screenshot you'd like to take. After a couple of seconds, a screenshot will be taken, and it will save in your Gallery app.
You can save fuel because the engine then goes back to idle. But by disconnecting the engine from the wheels (freewheeling) you don't have so much control over your car. You can also save fuel by turning off the engine and freewheeling down a hill, but if you have power brakes they won't have any power. Could be a problem.
To take a screenshot, press the Power and Volume down buttons at the same time. It will capture what's on your screen, and it will save in your Gallery.
Cutting down on gas helps a lot. Try walking more places or even biking. You can also save electricity but turning off your power for 1 hour a day
generally speaking it is about 1% of your cost per degree
A UPS (Uninterruptible Power Supply) has a battery in it that will give you a short window of time to save your work and power down your computer. Some models have software that will tell the computer to save everything and power down your computer without you having to be there.
Turning off the lights when not needed can help save electricity. Consequently, this can help save energy.