Questions

Bronze is the mixture of is a mixture of copper and tin. The composition is copper is 88% and tin is 12%.

A rotameter is a flow meter that measures volumetric flow of liquids and gases.

Radiocarbon dating also referred to as carbon dating or carbon-14 dating is a method for determining the age of an object containing organic material by using the properties of radiocarbon, a radioactive isotope of carbon.

The temperature danger zone for the food that cannot be stored for long time is between 5 degrees to 63 degrees centigrade.

Among the given options, the correct statement about immunodeficiency is "The causative agent in acquired immune deficiency syndrome (AIDS) is a virus that recognizes CD4 proteins".

Lord Kelvin, working in Scotland, developed the Kelvin scale in 1848. His scale uses molecular energy to define the extremes of hot and cold. Absolute zero, or 0 K, corresponds to the point at which molecular energy is at a minimum. The Kelvin scale is preferred in scientific work, although the Celsius scale is also commonly used. Temperatures measured on the Kelvin scale are reported simply as K, not °K.

T (in °C) + 273.15 = T (in K)

T (in K) − 273.15 = T (in °C)