Question

*** I now this a different subject***
Which of the following describes a likely relationship between a country’s population growth and its water supply?

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.

Answer 1

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

Answer 2

@wontonsilver @roseromeroo @Preetha @Bigjames012 @lofi @FEARLESS_JOCEY @ganeshie8

Answer 3

What is an aquifer?

Answer 4

like a layer of water

Answer 5

yep a very special one underground because its filtered by all the dirt and is usually clean enough to drink or water crops with

Answer 6

We typically pump water up from the aquifer not in to it.

Answer 7

In fact sometimes its illegal to pump water from the surface back in to the aquifer

Answer 8

lol

Answer 9

So it cant be I

Answer 10

so that is out

Answer 11

yup what are you thinking for the next two?

Answer 12

i think it could be II only

Answer 13

Do you know what grey and black water is?

Answer 14

II is correct btw but what about III

Answer 15

oh that is also true thank you so much

Answer 16

yup no problem

Answer 17

Hold on

Answer 18

Can you help with another

Answer 19

sure

Answer 20

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

Answer 21

Whats a really high ph? whats a really low ph? what a nuetral Ph?

Answer 22

Or better yet which ones can you eliminate for sure

Answer 23

high ph is a base. low is a acid

Answer 24

yep. 14 is really high 2 is realy low 7 is nuetral

Answer 25

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

Answer 26

are there any other ones you feel you can rule out?

Answer 27

we should rule out the second choice

Answer 28

ok any others?

Answer 29

the third choice

Answer 30

I agree

Answer 31

Now we have left one about turbidity and one about dissolved oxygen

Answer 32

I think the answer is the last option

Answer 33

Correct

Answer 34

ok i have one more question

Answer 35

this a math/ science one

Answer 36

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.

Answer 37

If you'ce curious its called the haber-bosch process and aquatic dead zones.

Answer 38

thank you so much

Answer 39

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

Answer 40

Remember how I said that the aquifer was very special?

Answer 41

This question explains why

Answer 42

true

Answer 43

97.5% of our water has salt in it

Answer 44

"saline" btw means salty

Answer 45

I think I can solve this one

Answer 46

no need to solve only one answer is even remotely close

Answer 47

ik

Answer 48

the last option lol

Answer 49

yup

Answer 50

Well alright thanks for the great help

Answer 51

np