Question

Around the world, people often die from waterborne diseases caused by bacteria and viruses. What is a likely reason for this situation?

People drink water that has been contaminated with animal feces.

People bathe using water that has been contaminated by acid deposition.

People cook using water that has high levels of turbidity.

All of the above

Answer 1

the last option is best one according to me because its seems all the reasons given above is true.........

Answer 2

Well, itz....a) People drink water that has been contaminated with animal feces. ......
for example:

Giardia is a one-celled, microscopic parasite that lives in the intestines of people and animals and is passed in the stool of an infected person or animal. It is protected by an outer shell, which helps it survive outside the body and in the environment for long periods of time. During the past 20 years, giardia has been recognized as one of the most common causes of waterborne disease in the United States.

Reference:

http://www.infoplease.com/cig/dangerous-diseases-epidemics/giardiasis-one-celled-wonder.html#ixzz2Nj5w0WLd

Answer 3

From my point of view, this is D) All of the above.

Bacterias and viruses are soooo many in animal feces, and in poor countries, people may deal with contaminated aliments.
In those countries, industry doesn't have the same limits than in richer countries and throws their garbage in the rivers. As a result, the water is totally polluted by acids, bad chemicals and weird stuff : if you bath in this water, you're gonna have a bad time.
Finally, cooking with trouble water is not a good idea. There always are a lot of bacterias and viruses.

So this is why I think that the last option is the best. A lot of people are dying from those problems, but remember that the populations of the countries which have this kind of problems have a immune system much more powerful than ours. Some of them die anyway, but if you were facing their problems with you current immune system, you'll die much more faster than them.

Answer 4

What would acid deposition have anything to do with viruses and bacteria?

Answer 5

Water turbidity does not necessarily equate contamination with pathogenic bacteria. Neither does acid deposition, although that could lead to illness.

Answer 6

I do agree with that.

That's why I lean on Koikkara's opinion. (Rare as it is, buddy.)
Giardiasis though, you probably know, is a parasitic disease. Neither viral, nor bacterial.

Answer 7

I agree with you, but isn't there a correlation between water turbidity and presence of bacterias in this water ? The Clostridium for example is a bacteria which is involved in some important deseases and lives in turbid water.
Meanwhile, the pH of an evironment may help some populations of bacterias or viruses to surive and multiply. The E.Coli for example is more likely to live in acidic environments than in basic ones. As their name says, the acidophilic bacterias survive in acidic places and are able to increase the risks of illnesses, if they are not directly responsables of the danger..

Answer 8

I was aware that turbidity is a clear indicator of filthy water.

But that thing about some strains of bacteria being more able to thrive in acidic environments, I did not know!

Answer 9

I see your point, but I still think that acidity does not necessarily mean there are acidophilic bacteria. Although there very well may be. Good point.

Answer 10

You're right, this is not because acidity is constated that there are acidophilic bacteria :)

Answer 11

so what is the answer?! @magalih @maud101 @inyourhead

Answer 12

I would still say A. If you cook turbid water, it is likely that the bacteria will die. Bathing in the water, even if it is contaminated, will not make you sick unless you have open wounds or you drink it on accident.