According to researchers, a layer of fungus, that is around 21 centimetres thick, could "largely negate the annual dose-equivalent of the radiation environment on the surface of Mars".
Conversely, occasional "good" behavior does not negate an overall theme of unhealthy behavior.
You can negate it by ensuring that you are using your phone or computer in a room where the lighting is bright enough.
And adding three to five sets of stairs a day instead of zooming up in that elevator can burn enough calories to negate the average adult's yearly one to two-pound weight gain.
That could negate the rationale for the spinoff and lead to a tax bill of several billion dollars.
Negate the negative You're bound to face negative thoughts and emotions, but you do not have to allow them to control you.
War doesn't negate decency.
