|
portal.guldu.uz |
Asosiy menyu
Izlash
Eng ko'p ko'rilgan resurslar
TIZIMGA KIRISH
Xozir saytda
| Xammasi: | 15 |
| Foydalanuvchilar: | 0 |
| Mehmonlar: | 15 |
| Barcha foydalanuvchilar: | 1587 |
Ismatilla Urazbayev Ismatullaevich 12.04.2019-11:51:57 Elektron darslik → Soilscience-tuproqshunoslik
|
Soils are the loose mineral or organic materials found on the earth`s surface, usually (or averagely) made up of about 25 % air, 25 % water, 45 % mineral and 5 % organic matter ( humus, tiny living organisms and sometimes plant residue).
|
Ko'chirish: 
 Ko'chirildi: 94
|
0
|
 |
|