The Russian Revolution - Notes (Class IX)


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Why is the B+ blood group so common in India and not at all in other parts of the world?

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Why is the B+ blood group so common in India and not at all in other parts of the world? India is a tropical country, hence the person living here is exposed to various types of diseases because in this climate the micro-organisms multiply and spread at a much faster rate. Blood group B is related to providing resistance against the diseases,hence the incidence of diseases would be much less in the people having the blood group B. Considering a hypothetical population that has equal number of people in all the blood groups, if there is an advent of a disease, there would be more casualties of the people of the blood group A,AB and O, whereas the people with the blood group B suffers less casualties as their blood group provides resistance.(Theory of natural selection). The survival for the fittest theory have worked years to select the population of India having more number of people of the blood group B. Source: Human Blood and Anthropology #rainbowz 
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Food : Where does it come from assignment

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Answers: 1. Obesity is a disorder involving excessive body fat that increases the risk of health problems. Obesity is generally caused by eating too much and moving too little. 2. The deficiency of protein in the diet causes Kwashiorkar. ◾The hair of child becomes red. ◾The child has reduced resistance to infections. ◾The child becomes weak and irritable. 3. ◾It provides bulk to the food. ◾It keeps the food and waste matter moving. ◾It helps in digestion. 4. i) No. ii) Fat rich food. 5. 6. A balanced diet gives your body the nutrients it needs to function correctly. Without balanced diet, your body is more prone to disease, infection, fatigue, and low performance. 7. 8. Glucose provides instant energy and is used by the muscles to perform the activity. 9. Goitre is caused due to the deficiency of iodine in our diet. Hilly areas such as Himalayas and northen plains are far away from the sea coast, hence the iodine content ...
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15. Some Great Empires of India (Class 4)

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WORKOUT I. 1. The ancient university of Nalanda    was a seat of Buddhist learning. 2. Chandra Gupta I married the Lichchavi princess, Kumaradevi. 3. The Gupta ruler Samudra Gupta    played the veena. 4. Chandra Gupta ll was the grandson of Chandra Gupta I. 5. The Brihadeeshwara Temple is situated in Thanjavur. II. 1. The Guptas ruled over the empire of Magadha. 2. It is believed that Kalidasa lived and wrote during the times of Chandra Gupta ll. 3. The Brihadeeswara Temple built by Rajaraja Chola is located at Thanjavur.  4. The Chola rule started with the capture of Thanjavur. III. 1.  Where was the capital of the Guptas located? What is it known as today? Ans -  ◾Patliputra was the capital of the Guptas.  ◾Today, Patliputra is known as Patna.  2. What is an empire?  Ans - An empire is a state ruled by an emperor.  3. Name the great sanskrit poet at the court of Chandra Gupta ll.  Ans - Kalidasa ...
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