Why do we fall ill

Chapter 13 Why Do We Fall Ill? Intext question and answer Page no 178 1. State any two conditions essential for good health. Ans. Proper nutrition, health surroundings. 2. State any two conditions essential for being free from Ans. A healthy state of body and mind *Free from disease-causing organisms. 3.  Are the answers to […]


Chapter 12 Sound Intext question and answer Page no 162 1. How does the sound produced by a vibrating object in a medium-reach your ear? Ans: Sound is a kind of wave motion produced by any vibrating body. There is no actual moment of air molecules from the sound-producing bodies to our ears. But, sound energy travels […]


Chapter 6  Tissues  Intext question and answers  Page #69  1. What is a tissue? Ans:   A group of cells that has similar organ, structure, and performing a specialized function in an organ of an organism is called tissue. 2. What is the utility of tissue in multicellular organisms? Ans:   The utility of tissues in multicellular organisms: Tissues group together to form organs. Tissues […]

Our Constitution

I. Discuss in groups and answer 1. What is Constitution?A Constitution is a set of fundamental legal-political rulesfollowed by a country. 2. Who was the president of the Constituent Assembly?Dr. Rajendra Prasad was the president of the ConstituentAssembly. 3. What was the role of Dr. B R Ambedkar in drafting theConstitution?Dr. B R Ambedkar was the […]

Waste water notes

Waste Water Story Notes Exercises 1. Fill in the blanks:(a) Cleaning of water is a process of removing pollutants_.(b) Wastewater released by houses is called sewage.(c) Dried sludge is used as manure.(d) Drains get blocked by cooking oils and fats. 2. What is sewage? Explain why it is harmful to discharge untreatedsewage into rivers or […]

Soil notes

SOIL NOTES Tick the most suitable answer in questions 1 and 2 1. In addition to the rock particles, the soil contains(i) air and water(ii) water and plants(iii) minerals, organic matter, air and water(iv) water, air and plants2. The water holding capacity is the highest in(i) sandy soil(ii) clayey soil(iii) loamy soil(iv) the mixture of […]

Nutrition in Plants

Nutrition in Plants Exercise 1. Why do organisms take food? The organisms need to take food to grow, to repair damaged part of their cells and to obtain the energy to carry out life processes. Food provide resistance to fight against diseases and protection from different infections. 2. Distinguish between a parasite and a saprotroph. […]

Hindi Notes

तृतीय भाषा पाठ – अध्यापक और विद्यार्थी I. सोचो और बताओ | 1 . रमेश की बेहेन का नाम क्या है ?उत्तर : रमेश की बेहेन का नाम राधा है | 2 . अध्यापक का नाम क्या है ?उत्तर : अध्यापक का नाम पवन कुमार है | 3 . रमेश का घर कहाँ है ?उत्तर […]