Achemical reaction is at equilibrium. compared to the rate of the forward reaction, the rate of the reverse reaction is
(1) faster and more reactant is produced
(2) faster and more product is produced
(3) the same and the reaction has stopped
(4) the same and the reaction continues in both directions

choice 4

Explanation:

the reaction is constant but it does not stop, therefore it's choice 4

indicate valleys, hills, steepness and gentleness of slopes.

explanation:

contour lines on a map indicate elevation, or depth. numeric notations on contour lines refer to the level of elevation, or height about sea level.

the increase of protons   hope this