MEDIUM
8th CBSE
IMPORTANT
Earn 100

Why cell membrane is called semi-permeable?

Important Questions on Test Paper

MEDIUM
8th CBSE
IMPORTANT
Galaxy A Course in Science Book 8>Chapter 19 - Test Paper>Test Paper 2>Q 3
Differentiate between manures and chemical fertilizers.
MEDIUM
8th CBSE
IMPORTANT
Galaxy A Course in Science Book 8>Chapter 19 - Test Paper>Test Paper 2>Q 3
Differentiate between sliding and rolling friction.
MEDIUM
8th CBSE
IMPORTANT
Galaxy A Course in Science Book 8>Chapter 19 - Test Paper>Test Paper 2>Q 3
What happens when more than one force is acting on a body?
MEDIUM
8th CBSE
IMPORTANT
Galaxy A Course in Science Book 8>Chapter 19 - Test Paper>Test Paper 2>Q 3
Explain what happens when salt is added to water and free ends of electrical wires are dipped in it.
MEDIUM
8th CBSE
IMPORTANT
Galaxy A Course in Science Book 8>Chapter 19 - Test Paper>Test Paper 2>Q 3
State the laws of reflection. What happens when the incident ray is normal to the plane of the mirror?
MEDIUM
8th CBSE
IMPORTANT
Galaxy A Course in Science Book 8>Chapter 19 - Test Paper>Test Paper 2>Q 3
Why is the ozone layer important?
MEDIUM
8th CBSE
IMPORTANT
Galaxy A Course in Science Book 8>Chapter 19 - Test Paper>Test Paper 2>Q 4
What do you mean by irrigation? Why is it so essential? What is a drip system? State its advantages.
MEDIUM
8th CBSE
IMPORTANT
Galaxy A Course in Science Book 8>Chapter 19 - Test Paper>Test Paper 2>Q 4

Describe the functions and characteristics of cell organelles such as the nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus, and ribosome, with relevant diagrams.