Why do most farmers remove weeds from the crop field?

Important Questions on Test Yourself (Based on Chapters 1 - 8)

MEDIUM

8th CBSE

IMPORTANT

Start Up Science>Chapter 19 - Test Yourself (Based on Chapters 1 - 8)>TEST YOURSELF (Based on Chapters 1 to 8)>Q 10

What is the role of bacteria in increasing soil fertility?

MEDIUM

8th CBSE

IMPORTANT

Start Up Science>Chapter 19 - Test Yourself (Based on Chapters 1 - 8)>TEST YOURSELF (Based on Chapters 1 to 8)>Q 11

Describe the general properties of plastics.

MEDIUM

8th CBSE

IMPORTANT

Start Up Science>Chapter 19 - Test Yourself (Based on Chapters 1 - 8)>TEST YOURSELF (Based on Chapters 1 to 8)>Q 12

Why are gold and silver suitable for making jewellery?

HARD

8th CBSE

IMPORTANT

Start Up Science>Chapter 19 - Test Yourself (Based on Chapters 1 - 8)>TEST YOURSELF (Based on Chapters 1 to 8)>Q 1

What is combustion? List the conditions under which combustion occurs.

EASY

8th CBSE

IMPORTANT

Start Up Science>Chapter 19 - Test Yourself (Based on Chapters 1 - 8)>TEST YOURSELF (Based on Chapters 1 to 8)>Q 2

Explain with examples the difference between endangered and extinct species.

HARD

8th CBSE

IMPORTANT

Start Up Science>Chapter 19 - Test Yourself (Based on Chapters 1 - 8)>TEST YOURSELF (Based on Chapters 1 to 8)>Q 3

Describe the structure of an animal cell with the help of a well-labelled diagram.

EASY

8th CBSE

IMPORTANT

Start Up Science>Chapter 19 - Test Yourself (Based on Chapters 1 - 8)>TEST YOURSELF (Based on Chapters 1 to 8)>Q 4

How is the sex of the baby determined?

MEDIUM

8th CBSE

IMPORTANT

Start Up Science>Chapter 19 - Test Yourself (Based on Chapters 1 - 8)>TEST YOURSELF (Based on Chapters 1 to 8)>Q 5

Differentiate between: Rabi and kharif