How can changes in the size of a glacier indicate climate change?

As the climate gets hotter, the glacier melts hence gets smaller, vice versa for colder temperatures.

Explanation:

Constitutional Monarch had its origins when King John was compelled to sign the Magna Carta that protected the barons from abusive of power from the king.  Later during the rise of Parliament, they presented the Bill of Rights that laid down a list of rights of individuals that further limited the power of the nobility.  When the English Civil War ended, the monarchy was restored but so as not to anger parliament, constitutional monarchy was establish that gave more power to the parliament than the king.

Explanation: