by Sunday | Sep 22 | NABTEB QUESTIONS
1. Fine particles that are closely packed. 2. fine/narrow pore spaces 3. sticky and slippery when wet 4. hard and cracked when dry 5. heavy when wet 6. wets slowly and dries slowly 7. difficult to till.
by Sunday | Sep 22 | NABTEB QUESTIONS
1. mechanical control of soil erosion such as contouring, ridging terracing to prevent top soil from being washed away. 2. planting leguminous crops to return soil nutrients and also act as cover crops to prevent exposure of top soil to intensive heat and leaching. 3....
by Sunday | Sep 22 | NABTEB QUESTIONS
1. rain water 2. wind 3. human activities
by Sunday | Sep 22 | NABTEB QUESTIONS
It is the washing away of the topsoil by rain water/the blowing away of the top soil by wind and dropping it elsewhere.
by Sunday | Sep 22 | NABTEB QUESTIONS
Energy (ATP), Lactate/Lactic acid, and water.
by Sunday | Sep 22 | NABTEB QUESTIONS
Description: 1. 2 lots of healthy seeds labelled A and B 2. Seeds A in their healthy condition are placed in a wet cotton wool in a flask with thermometer inserted. 3. Mouth of flask well sealed with cotton wool. 4. This is the experiment 5. Seeds B killed by boiling...