MEDIUM
4th CBSE
IMPORTANT
Earn 100

Define gravitational force.

Important Questions on Yearly Examination (Based on Chapters 8 to 14)

EASY
4th CBSE
IMPORTANT
LEARNING SCIENCE Integrated with Environmental Education 4..>Chapter 18 - Yearly Examination (Based on Chapters 8 to 14)>Yearly Examination>Q E
What is chlorination? Why do we do it?
EASY
4th CBSE
IMPORTANT
LEARNING SCIENCE Integrated with Environmental Education 4..>Chapter 18 - Yearly Examination (Based on Chapters 8 to 14)>Yearly Examination>Q E
Define the term rotation.
EASY
4th CBSE
IMPORTANT
LEARNING SCIENCE Integrated with Environmental Education 4..>Chapter 18 - Yearly Examination (Based on Chapters 8 to 14)>Yearly Examination>Q E
Define the term revolution of the Earth. 
MEDIUM
4th CBSE
IMPORTANT
LEARNING SCIENCE Integrated with Environmental Education 4..>Chapter 18 - Yearly Examination (Based on Chapters 8 to 14)>Yearly Examination>Q E
The Sun is also a star but it looks very big as compared to the other stars. Why? 
EASY
4th CBSE
IMPORTANT
LEARNING SCIENCE Integrated with Environmental Education 4..>Chapter 18 - Yearly Examination (Based on Chapters 8 to 14)>Yearly Examination>Q F
Define deforestation and write the effects of deforestation.
MEDIUM
4th CBSE
IMPORTANT
LEARNING SCIENCE Integrated with Environmental Education 4..>Chapter 18 - Yearly Examination (Based on Chapters 8 to 14)>Yearly Examination>Q F
Define the process of sedimentation and decantation. Also, draw a figure to explain. 
MEDIUM
4th CBSE
IMPORTANT
LEARNING SCIENCE Integrated with Environmental Education 4..>Chapter 18 - Yearly Examination (Based on Chapters 8 to 14)>Yearly Examination>Q F
What is a force? Define the frictional force. Also, explain how friction helps us in various activities. 
MEDIUM
4th CBSE
IMPORTANT
LEARNING SCIENCE Integrated with Environmental Education 4..>Chapter 18 - Yearly Examination (Based on Chapters 8 to 14)>Yearly Examination>Q G

Label the following.

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                      Life cycle of hen