Please select a subject first
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Give two examples of alloys with their chemical composition.
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Given below are the end products of different reactions involving glucose.

Write the reaction number in front of the following:
(i) Anaerobic reaction =
(ii) Reaction in the human muscles =
(iii) Aerobic respiration =
(iv) Reaction in the plant cells =
(v) Reaction in the liver
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Tinning : Tin : : Galvanizing : _________
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Carbon dioxide enters into the leaves through tiny pores present on the surface of the leaf called _________.
(a) chlorophyll
(b) chloroplast
(c) stomata
(d) epidermis
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Cellular respiration takes place in
(a) Lysosome
(b) Chlorophyll
(c) Mitochondria
(d) Ribosome
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Write two methods of preventing the rusting of iron.
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What are alloys?
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What is anodising? Give its applications.
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The exchange of respiratory gases in the cells of plants occurs by the process of _______________
(a) Osmosis
(b) Diffusion
(c) Glycolysis
(d) exhalation
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What do these symbols indicate? Explain our opinion about those symbols.
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Explain the meanings of ‘symbols A’ & ‘B’.
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Write the types and examples of biodiversity.
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Identify the process shown in the diagram and explain it in short

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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.
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Find the odd man out:
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Identify the following symbol and state their significance.
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Choose the correct alternative and rewrite the following:
Iron is _____________________.
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Write three methods of preventing rusting of iron.
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List the organs of Human respiratory system.
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Rewrite the following statement by selecting the correct option.
During respiration, ____________ gas is given out.
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