How many objects are needed for a successful revolution and why

May be 3.

Explanation:

Proper planning, ideology and large number of people who are in favor of revolution are needed for a successful revolution because with proper planning the people can achieve their goal for which they want revolution from the government while large number of people put pressure on the government to accept their ideology for which they want revolution.

explanation:

the solute can move "downhill," from regions of higher to lower concentration, relying on the specificity of the protein carrier to pass through the membrane. this process is called passive transport or facilitated diffusion, and does not require energy.