Physical Science

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1) Carbon dioxide is obtain from the air and changed into carbohydrates oxygen during the process of

fossilization.
respiration.
digestion.
photosynthesis.

2) Which sequence of processes must occur for an atom of carbon to go from car to tree?

respiration, decomposition.
combustion, photosynthesis.
fossilization, decomposition.
fossilization, photosynthesis.

  • Physical Science -

    Please guess yourself and put an arrow beside your answer. <------
    I am sure you know.

  • Physical Science -

    Can someone help me =.=

  • Physical Science -

    I Guess....

    1) respiration.
    2) fossilization, photosynthesis.

  • Physical Science -

    1 is photosynthesis
    Plants take in CO2 and produce O2

    2 is combustion - photosynthesis (the giveaway is the car burning fuel)

  • Physical Science -

    a
    d
    d
    b

  • Physical Science -

    thanks anon!!! 100!!!

  • Physical Science -

    If you are in Connexus, these are the answers.

    1.) A

    2.) D

    3.) D

    4.) B

  • Physical Science -

    For everyone who is stupid answers are


    1. A

    2. D

    3. D

    4. B

  • Physical Science -

    1.a
    2.d
    3.d
    4.b

  • Physical Science -

    Is this for unit 3 lesson 7?

  • Physical Science -

    1.A
    2.D
    3.D
    4.B
    i got 100%

  • Physical Science -

    100!

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