18. Which of these statements about particulate matter less than 2.5 microns in diameter is true?
O A. They're the size of a human hair
B. They can cause heart and lung disease.
C. They're less of a threat than particulate matter that's 10 microns in diameter
D. They're produced from nitrogen gas (N2).

here's your

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she forgot to record a transaction

after making a punnet square using bv bv bv bv you will find that the ratio will be 9: 7 or a 128.6% probability.

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answer: national resource conservation services

national resource conservation services is the us. based approach that provides technical and financial assistance for natural resource management. nrcs society in conservation of resources by involving in activities like farmland protection, flood prevention, watershed protection, urban conservation, conserves economic and environmental conditions. it conducts soil surveys and implements the policy of natural resources management on the society.