circle the answer 2 help please

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QUESTION 1

  1. Which is considered a fossil fuel?

    Coal

    Solar

    Wind

    Hydrothermal

2 points  

QUESTION 2

  1. Which is considered a physical science?

    Physics

    Biology

    Zoology

    Botany

2 points  

QUESTION 3

  1. Refrigeration has been used since the late 1800s and early refrigerants were

    Safe

    Flammable and toxic

    Inert

    Fluorine compounds, CFCs

2 points  

QUESTION 4

  1. The smallest concentration listed below is

    Parts per million

    Parts per trillion

    Parts per billion

    Parts per thousand

2 points  

QUESTION 5

  1. Which activity comes first in the scientific method?

    Conclusion

    Hypothesis

    Experimentation

    Observation

2 points  

QUESTION 6

  1. A patient’s body weight is 158 pounds which is equivalent to

    82.1 kg

    34.8 kg

    348 kg

    71.7 kg

2 points  

QUESTION 7

  1. The measurement 0.0000043 m, expressed correctly using scientific notation is

    4.3 x 10-7

    4.3 x 10-6

    4.3 x 106

    0.43 x 10-5

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