In this article, you can get theoretical information about the means of forming the interrogative content. Simple sentences with interrogative content include pure interrogative sentences and rhetorical interrogative sentences among linguistic means. In particular, interrogative sentences with interrogative pronouns are considered as a means of reference. Interrogative pronouns, using questions such as who, what, how, which, how many, how much, when, are used to refer to relationships such as person, thing, object, sign-property, time, quantity-degree. Sentences with interrogative pronouns. The article analyzes theoretical information about interrogative sentences and shows the features of the means of forming the content of interrogative sentences based on examples.

Ushbu maqola bedanalar ratsioniga gidroponik usulda yetishtirilgan ozuqalarni qo'shish orqali parrandachilik sohasida erishiladigan afzalliklarni o'rganadi. Tadqiqotda gidroponik yem-xashak yetishtirish texnologiyalari, ularning ozuqaviy qiymati va bedanalar ratsionida qo'llanilishi, shuningdek, ushbu usulning iqtisodiy va ekologik jihatlari tahlil qilinadi. Natijalar gidroponik ozuqalarning bedanalar salomatligi, mahsuldorligi va mahsulot sifatiga ijobiy ta'sirini ko'rsatadi hamda an'anaviy ozuqalarga nisbatan bir qator ustunliklarini aniqlaydi.

The article discusses the history and development of the management field. The importance of studying and analyzing the management field, especially the organizational-economic, social, cultural-educational significance of management in the field of management, has been studied and methodologically studied.

Ushbu maqolada ijtimoiy migratsiyaning yetim bolalar huquqlariga ta’siri tahlil qilinadi. Ota-onasining migratsiya sababli uzoqlashishi yoki vafoti natijasida bolalar ijtimoiy va huquqiy muammolarga duch keladi. Xususan, ularning ta’lim olish huquqi cheklanishi, ekspluatatsiya xavfi ortishi, ruhiy va psixologik bosim ostida qolishi kuzatiladi. Maqolada bu jarayonning asosiy sabablari, uning jamiyatga va bolalar kelajagiga ta’siri hamda huquqiy va ijtimoiy himoya choralarining samaradorligi muhokama qilinadi. Muammo yechimiga qaratilgan tavsiyalar ilgari suriladi.

The determination of metal ions such as Cu²⁺ and Zn²⁺ in various samples is crucial for environmental monitoring, industrial quality control, and biomedical applications. This study explores the quantitative analysis of Cu²⁺ and Zn²⁺ ions using UV/Vis spectrophotometry, a rapid and reliable technique based on the absorption of light by metal-ligand complexes. Optimal conditions for the detection, including wavelength selection, reagent concentration, and pH, were investigated to enhance sensitivity and accuracy. Calibration curves were constructed to determine the linearity and detection limits for each ion. The method was applied to real samples, and results were validated against standard techniques. The findings demonstrate that UV/Vis spectrophotometry provides a cost-effective and efficient approach for Cu²⁺ and Zn²⁺ determination in various matrices.