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The structure of 1-butyne is straightforward yet essential for understanding its properties. It consists of a straight-chain arrangement of four carbon atoms (C) connected by single bonds, except for the first carbon and the second carbon, which are joined by a triple bond (≡). The structural formula can be represented as CH₃C≡CCH₃, with the triple bond located between the first and second carbon atoms. The presence of this triple bond leads to specific hybridization; the carbon atoms involved in the triple bond are sp-hybridized, while the terminal carbon atoms are sp³-hybridized.

Nitrogen fertilizers are indispensable in modern agriculture, providing essential nutrients that drive plant growth and increase food production. However, their use requires careful management to balance agricultural benefits with environmental sustainability. By adopting practices that enhance nitrogen use efficiency, the agricultural sector can continue to meet food demands while protecting natural ecosystems for future generations. As we move towards a more sustainable agricultural model, the challenge lies in finding innovative solutions that maintain productivity while minimizing adverse environmental effects.

1. Preservative Lactic acid is effective in inhibiting the growth of undesirable microorganisms, thus helping to prolong the shelf life of food products. It is particularly useful in products like salad dressings, sauces, and canned foods.