Science( please help)

  In a cathode ray tube, the number of electrons that reach the fluorescent screen is controlled by the 

A. cathode.
B. deflecting plate.
C. anode.
D. grid.


The part of the atom that accounts for electricity is the 

A. nucleus.
B. electron.
C. neutron.
D. proton.


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  1. grid, electron.

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    4. 🚩

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