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Class 7 · विज्ञान · 156+ Q&A

Class 7 Science — Wastewater Story Important Questions with Answers (Short answers)

Class 7 Science is the first full year photosynthesis, acids-bases and electric current share one textbook. The rationalized NCERT dropped a few older chapters; what remains is the set CBSE still samples in periodic tests. This hub writes one unique paragraph and a question cluster per surviving chapter so “nutrition in plants class 7 important questions” and “heat class 7 MCQ” resolve to real practice, not an empty subject shell. Answers stay behind a tap. Hindi and English stems sit together because most school papers are bilingual.

  1. अध्याय चुनें
  2. MCQ टेस्ट — उत्तर छिपा
  3. View answer से मिलाएँ
  4. 20 प्रश्न / पेज

Wastewater Story — अपशिष्ट जल की कहानी

Sewage is more than dirty water — it is a public-health pipe. Grit, sedimentation, aeration and disinfection are the treatment words Class 7 wants. Open drains and uncovered manholes are not “normal city life”; they are infection routes. Household good practice (oil not down the sink) sits beside the plant diagram. Write the steps in order; shuffled steps lose the mark. You are on Wastewater Story (Short answers), page 1 of 1 — 3 questions in this filter. Short answers are two-to-four line NCERT points — definition, reason, or a small numerical. Write in the language your school paper uses (Hindi or English) then match the hidden paragraph. These are the 2- and 3-mark stems teachers recycle. Phone layout: chapter chips scroll sideways, answers stay inside a tap, and the next page is a numbered link so Google and students both get a short URL. Updated for 2026 classroom practice on the rationalized NCERT.

All Q&A MCQ test Short answers Long answers Important
All chapters 1. Nutrition in Plants 2. Nutrition in Animals 3. Heat 4. Acids, Bases and Salts 5. Physical and Chemical Changes 6. Respiration in Organisms 7. Transportation in Animals and Plants 8. Reproduction in Plants 9. Motion and Time 10. Electric Current and its Effects 11. Light 12. Forests: Our Lifeline 13. Wastewater Story

Page 1 of 1 · 3 questions in this view

Q.118 Short Wastewater Story

एक चार-जीव खाद्य श्रृंखला लिखें।

View the correct answer

घास → टिड्डा → मेंढक → साँप (उत्पादक पहले)।

Q.121 Short Wastewater Story

Wastewater Story (कक्षा 7) को 3 पंक्तियों में लिखें — परिभाषा, एक उदाहरण, एक परीक्षा-चूक।

View the correct answer

परिभाषा: Wastewater Story / अपशिष्ट जल की कहानी Class 7 Science का पाठ है।
उदाहरण: NCERT चित्र या संख्यात्मक इसी अध्याय से लें।
चूक: अगली कक्षा का सूत्र या deleted पाठ न घुसाएँ।

Q.148 Short Wastewater Story

कक्षा 7 — Wastewater Story से एक “अंतर स्पष्ट कीजिए” का ढाँचा लिखें।

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स्तंभ A / स्तंभ B: Wastewater Story की दो निकट अवधारणाएँ।
प्रत्येक पर एक उदाहरण।
एक पंक्ति: परीक्षा में कौन-सा शब्द भ्रमित करता है।

People also ask — Class 7 Science

Class 7 Science में कितने प्रश्न हैं? 156 महत्वपूर्ण प्रश्न: 89 MCQ, 42 लघु, 25 दीर्घ। NCERT विज्ञान के rationalized अध्याय।

उत्तर कहाँ हैं? हर प्रश्न के नीचे View the correct answer दबाएँ। पहले स्वयं लिखें, फिर मिलाएँ। MCQ में सही विकल्प और एक पंक्ति की व्याख्या है।

पेज क्यों बँटे हैं? एक स्क्रीन पर 20 प्रश्न। बाकी Page 2, 3 पर — फोन पर स्क्रॉल छोटा रहता है। यह पेज 1/1 है।

Wastewater Story क्यों महत्वपूर्ण है? Sewage is more than dirty water — it is a public-health pipe. Grit, sedimentation, aeration and disinfection are the treatment words Class 7 wants. Open drains and uncovered manholes are not “normal city life”; they are …

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