~~~Recycling~~~ Flashcards
Why do we need to recycle materials?
It takes less energy to recycle metals and this is why we do it.
Why are alloys difficult to recycle?
Most alloys are non toxic and there are facilities in the UK to separate alloys.
Which process adds carbon dioxide to the atmosphere?
Respiration
What is nitrogen used for in a plant?
Nitrogen is used for making proteins.
How do plants take in nitrogen?
Through the roots
Which of the following plants would have nitrogen fixing bacteria?
Peas
What word describes the relationship between the plant and nitrogen-fixing bacteria?
Mutualistic
In what form is nitrogen taken into a plant?
Nitrates
Which microorganism turns nitrogen gas into ammonia?
Nitrogen fixing bacteria convert nitrogen into ammonia.
Which microorganisms convert nitrates to nitrites?
Denitrifying bacteria convert nitrates into nitrites.
Which microorganism turns ammonia into nitrates?
Nitrifying bacteria
Which of the following is another method for fixing nitrogen?
Lightning converts nitrogen gas into soluble nitrates
What is the name of the soil bacteria that convert proteins and urea into ammonia?
Decomposers
