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What is meant by pollination?
Concept: Sexual Reproduction in Plants
Give scientific reason.
Flower is a structural unit of sexual reproduction in plants.
Concept: Sexual Reproduction in Plants
Give any two examples of agents of pollination.
Concept: Sexual Reproduction in Plants
In a plant flower the female whorl is ______.
Concept: Sexual Reproduction in Plants
What is the structural unit of sexual reproduction in plant?
Concept: Sexual Reproduction in Plants
What are the agents for pollination?
Concept: Sexual Reproduction in Plants
What is the function of calyx?
Concept: Sexual Reproduction in Plants
Triple fusion involves ______.
Concept: Sexual Reproduction in Plants
Type of sexual reproduction is ______.
Concept: Sexual Reproduction in Plants
How does Embryology study lead us to understand evolution?
Concept: Paleobotany
Tinning : Tin : : Galvanizing : _________
Concept: Corrosion of Metals
Write two methods of preventing the rusting of iron.
Concept: Corrosion of Metals
What is anodising? Give its applications.
Concept: Corrosion of Metals
In the extraction of aluminium: Draw the diagram for the extraction of aluminium.
Concept: Basic Principles of Metallurgy > Extraction of Metals
In the extraction of aluminium: Why is it necessary to replace anodes time to time?
Concept: Basic Principles of Metallurgy > Extraction of Metals
Identify the process shown in the diagram and explain it in short
Concept: Corrosion of Metals
Answer the following question.
a) What is meant by corrosion?
b) Write names of any two methods of prevention of corrosion.
c) In which method, metal like copper, aluminium are coated with a thin layer of their oxides by means of electrolysis.
d) Explain this method with diagram.
Concept: Corrosion of Metals
Find the odd man out:
Concept: Corrosion of Metals
