Science Help!!!!

1. Which of the following types of pollution cannotbe attributed to car and truck emissions?
A. Acid rain
B. Sedimentation
C. Ozone
D. Photochemical smog

2. In which of the following places is it more difficult to determine if there is pollution?
A. Aquifer
B. Stream
C. Air
D. Pond

3. Cutting down certain trees while leaving other trees standing would best be described as
A. Contour farming
B. Clear-cutting
C. Desertification
D. Selective cutting

My answers
1. A
2. D
Are my answers right

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asked by callie
  1. Sorry my answers are
    1. B
    2. A
    3.D
    Are they right?

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    posted by callie
  2. I don't agree with 1 and 2. You didn't answer 3.

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  3. 3 is ok.

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  4. ! and 2 are ok now.

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  5. OMG answer the question i have gone all over this site and all i got were confusing conversations :,(

    no offense to you guys, you seem nice :)

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    posted by strange

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