What is the system of checks and balances in government? give at least one specific example.

Examples of how the system of checks and balances in the Russian Federation operate:  

Executive-Legislative power: The Government of the State proposes to Parliament draft laws, which the latter is obliged to consider.  

Executive power-President: The head of State may not sign the approved bill and return it for reconsideration. This is the embodiment of the right of veto.

Legislative power-President: By re-voting for approval of the act of lawmaking the parliament overcomes the veto power of the president. In the Russian Federation for the adoption of the bill, in this case, it is necessary 2/3 "for" from the whole meeting of Deputies.  

Executive-Judicial power: If the adopted draft law contradicts the Constitution of the State, the Government is empowered to challenge it before the Constitutional Court.  

Legislative-judicial power: if in the opinion of the Parliament, the government admits illegal and contrary to the Basic Law of the country activity, the representatives of the legislature can challenge this fact in the Constitutional Court. I HOPE IT HELPS YOU!

using the scientific method.