Name 4 components of soil, state 2 economic uses of soil, explain factors influencing soil formation, other than soil erosion state 5 ways in which soil may be degenerated, and briefly explain 3 effects of soil erosion to human activity.

Hapa kuna vijenzi vinne vikuu vya udongo:

• Madini (Mineral matter): Hii inajumuisha chembechembe za miamba iliyosagwa kama vile mchanga, udongo, na mfinyanzi.
• Viumbehai (Organic matter): Hii ni pamoja na mabaki ya mimea na wanyama waliokufa, na viumbe hai kama vile bakteria, fungi, na minyoo.
• Maji (Water): Udongo una nafasi ambazo zimejazwa na maji, ambayo ni muhimu kwa ukuaji wa mimea na viumbehai wengine.
• Hewa (Air): Nafasi zingine kwenye udongo zimejazwa na hewa, ambayo pia ni muhimu kwa kupumua kwa mizizi ya mimea na viumbehai wa udongo.