Please select a subject first
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Fill in the blank:
Very fine particles mainly scatter ………… colored light.
Concept: Some Natural Phenomena Due to Sunlight
Choose the correct alternative and rewrite the following sentence.
A ray of light strikes the glass slab at an angle of 50°. What is the angle of incidence?
Concept: Refraction of Light Through a Rectangular Glass Block
Choose the correct alternative and rewrite the following sentence.
A ray of light strikes the glass slab at an angle of 50°. What is the angle of incidence?
Concept: Refraction of Light Through a Rectangular Glass Block
Draw the diagram of refraction of light in the glass slab
Concept: Refraction of Light Through a Rectangular Glass Block
Draw the diagram of refraction of light in the glass slab
Concept: Refraction of Light Through a Rectangular Glass Block
We can see the sun even when it is little below the horizon because of ______.
Concept: Refraction of Light
Explain how the formation of a rainbow occurs.
Concept: Refraction of Light
Explain the role of citizen in pollution control.
Concept: Abatement of Pollution
Define Heredity. Give two examples.
Concept: Heredity
Somatic and stem cells undergo ______ type of division.
Concept: Cell Division: an Essential Life Process
Give scientific reason.
We feel exhausted after exercising.
Concept: Production of ATP
- What are vitamins?
- Classify them according to their solubility.
- Give one example of each type as per above classification.
Concept: Production of ATP
Body breaks up into several fragments and each fragment starts to live as a new individual. This is ______ type of reproduction.
Concept: Gametogenesis
Prepare a slogan for campaign against female foeticide.
Concept: Sexual Reproduction in Plants
Draw a diagram of the longitudinal section of a flower and label the following parts.
Concept: Sexual Reproduction in Plants
Sketch and label the essential and accessory whorls of flower.
Concept: Sexual Reproduction in Plants
Write the factors affecting the environment.
Concept: Environmental Conservation
Identify the following symbol and state their significance.
Concept: Environmental Conservation and Biodiversity
Attempts at various levels are performed for conserving environment. Which role would you like to perform. Give two actions each:
- Prevention
- Control
- Production
- Awareness
- Conservation
Concept: Environmental Conservation
What is the meaning of the symbol shown in the figure with respect to environment?

Concept: Environmental Conservation and Biodiversity
