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16. In the human eye, images are formed on the?

A. pupil. C. retina.

B. lens. D. iris.

17. The simplest type of matter is a/an

A. atom. C. compound.

B. element. D. molecule.

18. Heat passes through liquids by the process of

A. absorption. C. convection.

B. conduction. D. radiation.

19. Which one of the following elements is not necessary to start a fire?

A. Combustible material C. Light

B. Heat D. Oxygen

20. When there’s an electric current in a wire,

A. the insulation is burned off.

B. a lamp is lighted.

C. the wire becomes brittle.

D. a magnetic field exists around the wire.

7 Answers

  • 1 decade ago
    Favorite Answer

    I think...

    16) C

    17) A

    18) B

    19) C

    20) D

  • 1 decade ago

    16) 12

    17) cat

    18) b

    19) eleventeen

    20) the square root of negative 1

  • 1 decade ago

    C, A, B, C, D.....are you studying for the MCAT or something?

  • 1 decade ago



    B and C



  • 1 decade ago

    do your own homework.

  • 1 decade ago

    B, D, A, B, C, A, C

  • 1 decade ago






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