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Nitrogen is an inert gas and forms about 70% of earth's atmosphere. It's principle use is to blanket something to prevent the entrance of moisture.
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What has sulfur been used in the past?
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How have rainforests been used in the past?
Rain forests have been used for paper,oxygen, and medicine.
Does gasoline have benzene in it?
In the past it has been used as a gasoline additive.
What is nitrogen used for in industry?
Nitrogen is used to build up pressue. -Samuel Montgomery
How can nitrogen be used?
nitrogen can be used for cooling computer systems and for fertilizing plants in a certain way
What has been used in the past?
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What has sulfur been used in the past?
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Is liquid nitrogen used to shrink metals?
It has been used for this.
Has wind energy been used successfully in the past?
yes it has been used successfully in the past
Has the energy source been used in the past?
Yes it has been successful in the past
What is Have been and had been?
"Have been" is used to indicate actions that started in the past and continue in the present. "Had been" is used to indicate actions that were completed in the past before another action occurred.
What is a past participle of been?
The past participle of "be" is "been." It is used to form the present perfect tense and the past perfect tense in English grammar.
Has biomass energy source been successfully used in the past?
Yes it has been successful in the past
What is the different between the have and have been?
Have is used for present and Have been is used for past continous.
What is the past participle of use?
Used (e.g "It had been used for...", "John was used", etc.)
What does 'been' mean?
"Been" is the past participle of the verb "to be." It is used to indicate that something has happened or existed in the past.
What has calcium been used for in the past?
it has been used for life forms for bones and shells.
