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Named After Scientists
Curium (Cm) after Pierre and Marie CurieFermium (Fm) after Enrico FermiEinsteinium (Es) after Albert EinsteinMendelevium (Md) after Dimitri Mendel..
Public Awareness Programmes
An awareness should be created amongst the masses using the various media of communication like the TV, radio, newspapers and the magazine..
Better Quality
The public is aware and so it looks out for better quality crops. The quality would mean better size, colour, shape and taste. The health conscious public also wants better nutritive value in the food cro..
Communicable Diseases - Continued 2
Food that is stale or has got rancid should not be consumed.Public should be educated about community hygi..
Prevention
Public awareness of health and hygiene is essential BCG or Bacillus-Calmette-Guerin vaccination which contains weakened Tuberculosis bacillus is injected into the system to produce antibodies that will fight the disease Cows that are milked should be immunized with tuberculin vacc..
Question 1
Question: Why were the scientists not able to observe most of the cell organelles before 1940? Answer: Before 1940, scientists could view the cell only under a light microscope. The invention of the electron microscope in 1940 enabled the scientists to obse..
Prevention / Control
The government has made it mandatory to iodise the salt consumed by the public. Besides sea food, green leafy vegetables etc are rich in iodine and if included generously in the diet will restore the normal functioning of the gland. Intra muscular infections of iodised oil, the base bein..
Commercial Forestry or exploitative forestry
The main aim of this type of forestry is to supply goods and services to meet the local demand for firewood, fodder, food, fertilizers, fibre, timber, medicines etc. It is classified into two types: Social Forestry and Environmental Forestry: Trees which are useful to the tribal people are planted..
Periodic Classification of Elements
Initially scientists had classified elements into metal and non-metals. However, some elements possessed properties which could neither be classified as metals nor non-metals called metalloid..
Introduction
At the turn of the nineteenth century, about 30 elements were known. 50 years later by the 1850s, scientists had discovered sixty three chemical elements and the numbers kept increasing. With the discovery and study of more and more elements and their compounds, the various data about th..
Result
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