HELP LAST QUIZ in CHEMISTRY

Which are the most abundant gases in the atmosphere ?



  nitrogen and oxygen

 nitrogen and carbon dioxide


 water vapor and oxygen


 oxygen and hydrogen

---

Fertilizers such as nitrates and phosphates are examples of what type of pollutant



 minerals and chemicals


 infectious agents


  plant nutrient

 oxygen demanding wastes

---

Question 3 (Multiple Choice Worth 10 points)

The atmospheric layer in which is found the air we breathe is known as ___________



  troposphere


 mesosphere


 stratosphere


 thermosphere

---

Question 4 (Multiple Choice Worth 10 points)

Which layer of soil contains the inorganic materials from parent rocks ?



  substratum


 topsoil


 humus


 subsoil

---

Question 5 (Multiple Choice Worth 10 points)

Which is not necessary for photochemical smog formation ?


  sulfur dioxide

 sunlight


 free radicals


 nitrogen dioxide

---

Which is not a method for removing particular and aerosol pollutants from the atmosphere ?


 rain and snow


 electrostatic precipitation


 scrubbing


  distillation

---

Question 7 (Multiple Choice Worth 10 points)

A sweet soil is one that




 is slightly acidic


 has a pH = 7


 contains sufficient amount of oxygen


  is slightly basic

---

Question 8 (Multiple Choice Worth 10 points)

Of the 2.5 % fresh water supply, what amount is available as groundwater or surface water for human use?



 100%


 97.5%


  2.5%


 less than 1%

GUESSING

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Question 9 (Multiple Choice Worth 10 points)

Layers of water-bearing porous rock are called ____________.


  aquifers



 artesian wells


 ground wells


 Brackish wells




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Question 10 (Multiple Choice Worth 10 points)

Which of the following is the major use of water in the United States “


 households


 industry


  agriculture


 thermoelectric power

For sure 9 / 10

Answers:

Question 1 = A

Question 2 = C

Question 3 = A

Question 4 = A

Question 5 = A

Question 6 = D

Question 7 = D

Question 8 = D

Question 9 = A

Question 10 = C

Hope this helps!  

Ahh, so I was wrong about 8, thanks Bio_World100

No problem.  I was debating between C and D. 

You both are awesome thanks a bunch!I missed number 4 and 10 its funny because I went over the answers you both gave me and ended up with the same things. I ended up with an 80! But hey thats better than the 60s and 70s ive been getting! I just wanna pass the class so I can have my certificate in Forensics! They again both of you 

will they update the answers, I'm discouraged now.

Haha I know me too! Grrrrr lol here is the answers

Question 1 (Worth 10 points)

Which are the most abundant gases in the atmosphere ?



 nitrogen and oxygen
This is a correct answer

 nitrogen and carbon dioxide


 water vapor and oxygen


 oxygen and hydrogen

Question Information: Please see Section 4.1 and Table 4.1 





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Question 2 (Worth 10 points)

Fertilizers such as nitrates and phosphates are examples of what type of pollutant



 minerals and chemicals


 infectious agents


 plant nutrient
This is a correct answer

 oxygen demanding wastes

Question Information: Please see Section 11.4 and Table 11.5 

 



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Question 3 (Worth 10 points)

The atmospheric layer in which is found the air we breathe is known as ___________



 troposphere

This is a correct answer

 mesosphere


 stratosphere


 thermosphere

Question Information: Please see Section 4.1 




--------------------------------------------------------------------------------


Question 4 (Worth 10 points)

Which layer of soil contains the inorganic materials from parent rocks ?



 substratum


 topsoil


 humus


 subsoil
This is a correct answer

Question Information: Please see Section 19.2 





--------------------------------------------------------------------------------


Question 5 (Worth 10 points)

Which is not necessary for photochemical smog formation ?


 sulfur dioxide
This is a correct answer

 sunlight


 free radicals


 nitrogen dioxide


Question Information: Please see Section 4.5 





--------------------------------------------------------------------------------


Question 6 (Worth 10 points)

Which is not a method for removing particular and aerosol pollutants from the atmosphere ?


 rain and snow


 electrostatic precipitation


 scrubbing


 distillation

This is a correct answer

Question Information: Please see Section 4.4 





--------------------------------------------------------------------------------


Question 7 (Worth 10 points)

A sweet soil is one that




 is slightly acidic


 has a pH = 7


 contains sufficient amount of oxygen


 is slightly basic
This is a correct answer

Question Information: Please see Section 19.2 





--------------------------------------------------------------------------------


Question 8 (Worth 10 points)

Of the 2.5 % fresh water supply, what amount is available as groundwater or surface water for human use?



 100%


 97.5%


 2.5%


 less than 1%
This is a correct answer

Question Information: Please see Section 11.2 





--------------------------------------------------------------------------------


Question 9 (Worth 10 points)

Layers of water-bearing porous rock are called ____________.


 aquifers


This is a correct answer

 artesian wells


 ground wells


 Brackish wells


Question Information: Please see Section 11.3 





--------------------------------------------------------------------------------


Question 10 (Worth 10 points)

Which of the following is the major use of water in the United States “


 households


 industry


 agriculture


 thermoelectric power
This is a correct answer

Question Information: Please see Section 11.3 and Table 11.3 

So am I!  I thought the answers I posted would have been at least 90% correct. 

hehehehe me too! How in the world does 3 intelligent minds score an 8 out of 10, I woulda hate to see what I got if I did it all alone! Oh well even the intelligent ones arent perfect  8)

I'm saying it's a mistake on their behalf Good job boys. ... and Lena!

Hahaha I agree I think its a mistake on the schools behalf, because we have mad thinking skills in this forum! 

Thanks for the compliments!

Really???  25% for a B+!!!  WOW!!!  You gotta be kidding me!  Which school do you attend?  Just curious...