primary source in a sentence

Example sentences for primary source

My friends and family are often a primary source of stress.
Although they are the primary source of climate change at present.
One in four say the emergency room is their primary source of care and, as the recession bites, that proportion is growing.
For media companies, it may soon be their primary source of subsistence.
The primary source of calcite, or calcium carbonate, is the secretions of certain sea creatures.
Especially when, as at this stage, they didn't even know where the primary source was.
Discuss the different types of primary source materials that may be collected in an archive.

Famous quotes containing the word primary source

Because relationships are a primary source of self-esteem for girls and women, daughters need to know they ... more
Byron's revealing line, "And if I laugh at any mortal thing, 'Tis that I may not weep," suggests that the comic sense is... more
Television enables voters to know their leaders far better than they did when newspapers were the primary sourcemore
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