Questions

Goosebumps are caused by the contraction of the tiny muscles attached to hair follicles. These muscles are arrectores pilorum muscles.

A pure solid and a pure liquid are definitely a single phase because they are so united, or homogeneous. This leads to a homogeneous mixture also being a single phase.

Hence, the option that cannot be considered a single phase is A. a heterogeneous mixture.

The International Day of Happiness (known as Happiness Day) is celebrated throughout the world on the 20th of March. The International Day of Happiness was founded on June 28, 2012, by the United Nations General Assembly when all 193 member states unanimously adopted UN resolution 66/281.

It was celebrated for the first time in 2013.

Lord Ripon was the Viceroy of India from 1880 to 1884. He introduced Local Bodies (Local Self Governance) in 1882 and showed the taste of independence to Indians.

Both 2 and 3 are clearly the diadvantages of circular list

The prime cost calculates the use of raw materials and direct labor, but does not factor in indirect expenses, such as advertising and administrative costs.

Supervisor's wages doesn;t come under prime cost.

Mitochondria are known as 'Power House' of the cell because they produce energy in the form of ATP.