New Longman Vistas is a textbook for Class 7 students that covers a wide range of subjects, including English, Mathematics, Science, Social Science, and Hindi. The book is written by Vipul Singh, Anuradha Mukherjee, and Jasmine Dhillon and is published by Pearson Education.

English Solutions

The English section of the book includes chapters on various topics such as grammar, comprehension, writing, and vocabulary. The solutions provided in the book cover all the topics in detail and provide students with a solid foundation in the language. Some of the topics covered in the book are:

- Nouns
- Pronouns
- Verbs
- Adjectives
- Adverbs
- Conjunctions
- Prepositions
- Tenses
- Articles
- Direct and Indirect Speech
- Active and Passive Voice
- Comprehension
- Summary Writing
- Letter Writing

Mathematics Solutions

The Mathematics section of the book covers the basic concepts of Mathematics and provides students with a strong foundation in the subject. The solutions provided in the book cover all the topics in detail and provide students with a step-by-step approach to solving problems. Some of the topics covered in the book are:

- Integers
- Fractions and Decimals
- Rational Numbers
- Exponents and Powers
- Algebraic Expressions
- Linear Equations in One Variable
- Ratio and Proportion
- Percentages
- Data Handling
- Geometry
- Mensuration

Science Solutions

The Science section of the book covers the fundamental concepts of Science and provides students with a basic understanding of the subject. The solutions provided in the book cover all the topics in detail and provide students with a step-by-step approach to solving problems. Some of the topics covered in the book are:

- Nutrition in Plants and Animals
- Respiration in Organisms
- Transportation in Animals and Plants
- Reproduction in Plants
- Motion and Time
- Electric Current and its Effects
- Light
- Water: A Precious Resource
- Forests: Our Lifeline
- Waste Water Management

Social Science Solutions

The Social Science section of the book covers the subjects of History, Civics, and Geography. The solutions provided in the book cover all the topics in detail and provide students with a comprehensive understanding of the subject. Some of the topics covered in the book are:

- The Delhi Sultanate and the Mughal Empire
- The Advent of Europeans and the British Rule in India
- Our Constitution and the Fundamental Rights
- The Judiciary
- Understanding Media
- Natural Vegetation and Wildlife
- Human Environment - Settlement, Transport, and Communication
- The Atmosphere: Climate, Weather, and Natural Disasters
- India: Physical Features

Hindi Solutions

The Hindi section of the book covers the basic concepts of Hindi grammar and provides students with a strong foundation in the language. The solutions provided in the book cover all the topics in detail and provide students with a step-by-step approach to solving problems. Some of the topics covered in the book are:

- वर्ण और उनके प्रकार
- शब्द रचना
- वाक्य रचना
- कारक
- संज्ञा
- सर्वनाम
- क्रिय

What are multipurpose river valley project? List the benefits derived from such projects.