All three statements (1, 2, and 3) are correct. Statement 1 is correct: Agricultural soils are a major source of nitrogen oxides (NOx) emissions, primarily nitrous oxide (NO). This occurs during microbial processes in the soil, such as nitrification and denitrification. Statement 2 is correct: Cattle release significant amounts of ammonia (NH) into the atmosphere through their urine and manure. This ammonia contributes to air pollution and can have negative environmental consequences. Statement 3 is correct: The poultry industry releases various reactive nitrogen compounds into the environment, including ammonia, nitrous oxide, and nitrogen oxides. These emissions come from poultry manure and the use of nitrogen-based fertilizers in feed production.