Answer:
OH-
Explanation:
H2O can act as base or acid.
When H2O acts as a base the conjugate acid is H3O+
When H2O acts as an acid the conjugate base is OH-
Their proton and electron numbers are same
Answer: The two layers of the Earth in which convection currents take place are the outer core and mantle
Explanation:Heat from the core and the mantle itself causes convection currents in the mantle. ... Convection currents like these have been moving inside Earth for more than four billion years! There are also convection currents in the outer core.
Explanation:
The two factors that affect the force of gravity are mass and acceleration. Mass is how much matter is in an object.
The strength of the gravitational force between two objects depends on two factors, mass and distance. the force of gravity the masses exert on each other. If one of the masses is doubled, the force of gravity between the objects is doubled. increases, the force of gravity decreases.