Questions

The watt-hour (WH) is a unit of energy equivalent to one watt (1 W) of power expended for one hour (1 h) of time.

1 WH = 3600 joules.

An improvement in production technology will shift the supply curve to the right.

Ranjit Hoskote

The struggle for Italian independence and unification was organised by the two famous revolutionaries of Italy Giuseppe Mazzini and Giuseppe Garibaldi. The movement led by them is known as the 'Young Italy' movement. It aimed at the independence and unification of Italy and the establishment of republic there.

Tectonic plates are pieces of Earth's crust and uppermost mantle, together referred to as the lithosphere. These plates which float on and travel independently over the mantle and much of the earth's seismic activity occurs at the boundaries of these plates.

The seven major plates are the African plate, Antarctic plate, Eurasian plate, Indo-Australian plate, North American plate, Pacific plate and South American plate.

Volcanoes usually form along plate boundaries , where tectonic plates are either moving towards or away from one another. They may be convergent or divergent.