should animals be used for experimentation

. The energy received by the electrons helps it to escape from the surface of the metal and to do this the electron loses an amount of energy called as the work function of the surface of the metal ( f ). Therefore, if the energy received by the electron from photon is h u [equation (2)] and u..

Boron, Carbon, Nitrogen and Oxygen..

Optics..

Nutrition can be defined as the process by which an organism obtains food which is used to provide energy and materials for its life sustaining activitie..

are an important resource as they are used as food to obtain useful materials like leather, ivory, fur, etc. for research in medicine for recreatio..

Bone Charcoal - It is prepared by the destructive distillation of bones of animals. Bones obtained from slaughter houses, are first treated with certain bacteria to remove all the fleshy remnants. Then the bones are taken in a furnace and heated strongly in the absence of air. The solid m..

1. Calcium hydroxide is used in the preparation of lime water. Lime water is a saturated solution of calcium hydroxide in water. 2. It is used to make milk of lime for white washing. When a small quantity of water is mixed with slaked lime, milk of lime paste is formed. It is ..

Measurement and Experimentation..

Measurement and Experimentation..

Introduction - Nutrition can be defined as the process by which an organism obtains food which is used to provide energy and materials for its life sustaining activiti..