b. about 85% of the bodyâs phosphorus is located in bones and teeth. c. the phosphoric acid in cola drinks has little effect on bone content. d. the ratio of phosphorus to calcium in the diet is important for bone maintenance.
Grass that grows in undesirable locations, such as between the cracks of a sidewalk, can be killed with chemicals called non-selective herbicides. Every herbicide, even ones with the same active ingredient, can have different strengths. Therefore, purchase herbicides in a ready-to-use container for easy use.
1 Remember, more is not better. 2  Use the application rate on the label. 3  Some herbicides are selective, and only kill certain types of plants, while others are non-selective and kill almost any type of plant. 4  Some herbicides kill weeds quickly, others can take up to a week or more. Some herbicides kill weeds quickly, others can take up to a week or more. 2  Some herbicides persist in plants and soils for long periods of time, while others only remain in plants or soil for a short time.