11th Class CBSE NCERT Computer Science: Mid Term Examination Set – A (2019-20) Time: 3 Hrs. Marks: 70 Class: 11th CBSE (NCERT) Date: 20/9/2019 General Instructions: All the questions are compulsory. There are 4 sections in the paper A, B, C & D. Write down the question number & sub part number …

Wastewater Story 7th Class NCERT CBSE Science Chapter 18 Question: Wastewater is fit for human consumption or not. Give reason to support your answer. Answer: No, because it is dirty and has many diseases causing organisms like cholera, typhoid etc. Question: Name two chemicals used to disinfect wastewater. Answer: Chlorine and ozone …

Forests: Our Lifeline 7th Class NCERT CBSE Science Chapter 17 Question: List some animals which live in deeper areas of the forest. Answer: Boars, bison, jackals, porcupines, elephants, etc., live in the deeper areas of the forest. Question: Paheli while moving in a forest observed that there was no noise pollution, though …

Water: A Precious Resource 7th Class NCERT CBSE Science Chapter 16 Question: Suggest one traditional way of storing water from ancient time. Answer: In ancient times, people used to make Bawris to store water. Question: What is the source of water in each of the following? Wells Ground Atmosphere Answer: The source …

एक स्वच्छ वातावरण एक शांतिपूर्ण और स्वस्थ जीवन जीने के लिए बहुत आवश्यक है। लेकिन मनुष्य के लापरवाही से हमारा पर्यावरण दिन ब दिन गन्दा होता जा रहा है। यह एक मुद्दा है जिसके बारे में हर किसी को पता होना चाहिए खासकर के बच्चो को। हम कुछ निम्नलिखित निबंध …

NEW DELHI: Central Board of Secondary Education (CBSE)’s rescheduled examinations for classes X and XII will be held at the school of the candidates and not at the earlier allotted examination centre. From Wednesday, students who wish to change their examination centre, can make a request for it. The rescheduled …

Light 7th Class NCERT CBSE Science Chapter 15 Question: Briefly mention whether mirror change the direction of light. Answer: Yes, when a ray of light is incident on the mirror surface, then the mirror changes the direction of light. Question: The image formed by a lens is always virtual, erect and smaller …

Electric Current and its Effects 7th Class NCERT CBSE Science Chapter 14 Question: Mention the name of the two devices that work on the basis of magnetic effects of current. Answer: The devices that work on the basis of magnetic effects of current are loudspeaker and electric bell. Electric Current and its …

Motion and Time 7th Class NCERT CBSE Science Chapter 13 Question: Give the basic unit of speed. Answer: Metre / second is the basic unit of speed. Motion and Time NCERT – Question: Mention which is the most common thing in almost all the clocks. Answer: The most common thing in almost …

Reproduction in Plants 7th Class NCERT CBSE Science Chapter 12 Question: Why is the process of reproduction necessary? Answer: The process of reproduction is necessary for the perpetuation and preservation of species and to increase the number of members of species. Question: If the filament of Spirogyra is broken into fragments. What …