Class 9 | Science | Chapter 14| Natural Resources | NCERT Solutions Page 193 1. How is our atmosphere different from the atmospheres on Venus and Mars? Earth's atmosphere Venus and mars atmosphere It is a mixture of nitrogen, oxygen, carbon dioxide and small amount of other gases. It mainly consist of carbon dioxide. Life is possible in earth's … [Read more...] about Chapter 14 Natural Resources

# NCERT Solutions

## Exercise 3.1

Class 6 | Mathematics | Chapter 3| Playing with Numbers | Exercise 3.1 Question 1:Write all the factors of the following numbers: (a) 24 (b) 15 (c) 21 (d) 27 (e) 12 (f) 20 (g) 18 (h) 23 (i) 36 Answer 1: (a) 24 = 1 x 24 = 2 x 12 = 3 x 8 = 4 x 6 = 6 x 4 Factors of 24 = 1, 2, 3, 4, 6, 12, 24 (b) 15 = 1 x 15 = 3 x 5 = 5 x 3 Factors of 15 = 1, 3, 5, 15 (c) 21 = 1 x 21 … [Read more...] about Exercise 3.1

## Exercise 2.1

Class 6 | Mathematics | Chapter 2 | Whole Numbers | Exercise 2.1 Question 1: Write the next three natural numbers after 10999? Answer: 10,999 + 1 = 11,000 11,000 + 1 = 11,001 11,001 + 1 = 11,002 Question 2: Write the three whole numbers occurring just before 10001. Answer: 10,001 – 1 = 10,000 10,000 – 1 = 9,999 9,999 – 1 = 9,998 Question 3: Which is the … [Read more...] about Exercise 2.1

## Exercise 1.1

Class 6 | Mathematics | Chapter 1| Knowing Our Numbers | Exercise 1.1 Question 1: Fill in the blanks: (a) 1 lakh = _______________ ten thousand (b) 1 million = ______________hundred thousand (c) 1 crore = _______________ ten lakh (d) 1 crore = _______________ million (e) 1 million = ______________ lakh Answer: (a) 1 lakh =10 ten thousand (b) 1 million = 10 hundred … [Read more...] about Exercise 1.1

## Chapter 13 Why do we fall ill ?

Class 9 | Science | Chapter 13| Why do we fall ill | NCERT Solutions Page 178 1. State any two conditions essential for good health. Answer: Health is a state of complete physical, mental and social well being. The two conditions essential for good health are 1) We need food for health and food will have to earn by doing work.For this, opportunity to do work … [Read more...] about Chapter 13 Why do we fall ill ?