Cant be taste or smell. Personally, I would go with density.
Answer:
The first sign of trauma to the testicle or scrotum is most often severe pain. Pain around the testicle may also be due to infection or swelling of the epididymis ("epididymitis"). Because the epididymis has a very thin wall, it easily becomes red and swollen by infection or injury.
Explanation:
Answer: Increased fecal coliform
Explanation:
The fecal coliform is a strain of bacteria which can be found in colonies in the digestive tract of humans and animals. It comes out along with the fecal discharge from the body. It is likely to be present in the farm runoff because it can be an ingredient of cattle dung based manure which could be used in farm land. Also will be present in the feedlot because of the daily discharge of dung by the cattles in the feedlot. In the septic tank the human or animal fecal matter will exhibit a colony of the coliform bacteria. If the solid and liquid matter from any of these discharges enters into a fresh water body will likely to cause pollution because of the presence of fecal colliform. It results in appearance of foul smell in water and likely to deteriorate the quality.
Carbon dioxide.
a gas produced by animals during respiration that plants use to make food, water, and oxygen.
hope this helps :)
