Mahsulot tavsifi
Study of ecological factors and their types, anthropogenic changes, ecological laws and regulations, the principle of the ecosystem. Gekkel's concept of the environment as a necessary part of life
#экология#чекловчи омиллар#ҳаётмуҳити
Muallif
Xan SotuvchiTasdiqlangan muallif
- Hujjatlari
- 6 190
- Sotilgan
- 247
