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#Question id: 355


Measurements show that the pH of a particular lake is 4.0. What is the hydroxide ion concentration of the lake?

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. 10^-10 M

  2. 10^-4 M

  3. 10^-7 M

  4. 10.0 M


Answer:- Option(s): 1


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#Unit 4. Cell Communication and Cell Signaling

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#Question id: 4257

#Unit 3. Fundamental Processes

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#Question id: 2115

#Unit 2. Cellular Organization

Which of the following statements about diffusion is true?

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#Question id: 9246

#Unit 9. Diversity of Life Forms

The main cause of the increase in the amount of CO2 in Earth's atmosphere over the past 150 years is

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