We know that fertilizier could promote the growth of the plant
When washed to the river, it will accelerate the growth of the water plant that exist within that area,
This occurrence will be not beneficial to the water animal because their habitat will be unnaturally blocked by these plants
hope this helps
Head moulding. Although, head moulding is common in any vaginal delivery, for a primigravid, which is having a child for the first time, is much more significant. The bones of a neonate are soft, flexible, and present gaps between them. These gaps and softness of the bones allow the moulding of the head when going through the vaginal canal. Being the first birth the vaginal canal is tighter and does not dilactate so well leading to a more significant head moulding.
One is Solubility of Sodium Chloride the other is Solubility of Lead Nitrate. The explanation for my answer is that they are comparing two different elements and they are two different masses. Which changes their solubility.
Answer
A) use them to expel excess water from the cell