Answer:
your answer is Magnesium
Explanation:
Magnesium deficiency results in yellowing between the leaf veins, sometimes with reddish brown tints and early leaf fall. Not so stunted as major nutrient deficiencies. Older leaves turn yellow at edge, interveinal chlorosis causes green arrowhead shapes or marbling in the centre of the leaf (speckling in cereals).
Answer: The human brain and other nerve tissues use mostly as fuel.
Answer: the control group was grown at a pH of 2
Explanation:
Seeds comprise a radicle, which descends and becomes the root system; the endosperm, containing stored food; an epicotyl, which develops into the stem and the seed coat that protects the seed. which are small food storage organs and plant embryos encased in a seed coat. These embryos require specific conditions in order to break their dormancy; seed dormancy is a temporary state in which plant development and growth are halted, until specific conditions required for germination to occur. Conditions required for seed germination:
- Light- some seeds require light to break their dormancy
- Oxygen- for respiration
- Water- protein hydration and enzyme activation; should be near to neutral pH
- Temperature- a specific range 20-30 °C which activates specific enzymes needed for growth
During the germination process, plants emerge from the seed and start growing. However, the delicate tissue structures can be damaged by low pH; this can occur due to acid rain, where the pH of the rainwater is lowered by the presence of pollutants.
Due to the presence of atmospheric carbon dioxide, normal rain’s pH is typically around 5.6, and in heavily polluted areas with other gases as pollutants, acid rain’s pH can range from 3-4. A highly acidic pH of 2 can denature enzymes required for germination and seed growth; apart from causing damage to the entire seed, there’s no expected growth at this pH range making it a suitable control.
Experimental controls give valuable information about the experiment’s conditions and validity; they are usually carried out in the same conditions as the other experiments, but the independent variable (pH) is usually changed.
Bacteria help the nitrogen change between states so it's able to be used. Different bacteria help it to change states so it can be absorbed by plants when nitrogen is absorbed by the soil.
<span>
</span>- Hopefully this is helpful
Answer:
because when we suitably level it there is high chance to have better seeds and production of plants. when there is good leveling then the plants get all nutrition and water equally with right amount of sunlight.