Mahsulot tavsifi
Contains 300 original assignments covering various topics in Biology (Inson organizmi, ovqatlanish, sog'liq, hujayra, genetika, o'simliklar, ekologiya), Physics (Harakat, tezlik, kuch, energetika, elektr, issiqlik, magnit, yorug'lik, tovush), Chemistry (Moddalar, eritmalar, kislota-ishqorlar, metallar, yonish, gazlar), Earth and Environmental Sciences (Atmosfera, suv aylanishi, iqlim, tuproq, zilzila, sayyoralar), and Ecology (Suv tanqisligi, havo ifloslanishi, chiqindilar, iqlim o'zgarishi, energiya)
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