Through this concept separate branches of government have the power to prevent actions by other government branches. In representative democracy checks and balances help to restrict powers between different branches.

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This is the concept of separation of powers.

Explanation:

The separation of powers is a concept created by Montesquieu that determines that the system of government of a nation must be governed by three different powers (executive, legislative and judiciary powers) that represent branches separate from the governmental system, in addition to monitoring each other, preventing the abuse of power and the concentration of power in just one branch of government.

In summary, the separation of powers allows separate branches of government to prevent actions by other branches of government. In representative democracy, checks and balances help to restrict powers between different branches.

this is a pretty broad question and can be a pretty lengthy answer. since 1900, women have gained a lot more rights and have become active in the workforce. with women being in the workforce, men play a larger role in family life. many family tasks are shared between men and women, whereas, women used to be the sole family caretakers.

that should get you started at least.

in about winter like late november to january