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I. As population increases, people must pump more water into aquifers. II. As population increases, people must use more water to irrigate crops. III. As population increases, people must treat more gray and black water. I only II only III only I and II only II and III only
@wontonsilver @roseromeroo @Preetha @Bigjames012 @lofi @FEARLESS_JOCEY @ganeshie8
What is an aquifer?
like a layer of water
yep a very special one underground because its filtered by all the dirt and is usually clean enough to drink or water crops with
We typically pump water up from the aquifer not in to it.
In fact sometimes its illegal to pump water from the surface back in to the aquifer
So it cant be I
so that is out
yup what are you thinking for the next two?
i think it could be II only
Do you know what grey and black water is?
II is correct btw but what about III
oh that is also true thank you so much
yup no problem
Can you help with another
Which of the following water bodies is most likely polluted? a stream with a pH of 6.3 a river with a large stonefly population a pond with low levels of fecal coliform a reservoir with a turbidity of 0.4 NTUs a lake with low levels of dissolved oxygen
Whats a really high ph? whats a really low ph? what a nuetral Ph?
Or better yet which ones can you eliminate for sure
high ph is a base. low is a acid
yep. 14 is really high 2 is realy low 7 is nuetral
6.3 is almost neutral and often times well find that surface water is slightly acidic anyways so 6.3 is a healthy ph for a stream
are there any other ones you feel you can rule out?
we should rule out the second choice
ok any others?
the third choice
Now we have left one about turbidity and one about dissolved oxygen
I think the answer is the last option
ok i have one more question
this a math/ science one
In the last 50 to 75 years we started using petroleum products mined from deep inside the earth to initiate a chemical reaction that takes nitrogen from the air and creates a chemical that looks a lot like salt. That chemical version of nitrogen is vital for plant grow and we realized that we could apply it to our crops and it would make our plants grow super big. Now farmers use it a lot and somtimes it ends up in our lakes. Well algea can grow off this nitrogen too. Like all plants the algea also needs oxygen inside the water. So when a lake gets polluted with nitrates a ton of algea gros, the algea uses all the oxygen in the water and then the fish and other aquatic life is left with very little oxygen to survive.
If you'ce curious its called the haber-bosch process and aquatic dead zones.
thank you so much
There are approximately 1,386 million cubic kilometers (km3) of water on Earth. Approximately how much of that total is saline? 4,158,000 km3 41,580,000 km3 134,442,000 km3 415,800,000 km3 1,344,420,000 km3
Remember how I said that the aquifer was very special?
This question explains why
97.5% of our water has salt in it
"saline" btw means salty
I think I can solve this one
no need to solve only one answer is even remotely close
the last option lol
Well alright thanks for the great help