IMPORTANT QUESTIONS

1. Q191 What is fertilization? Explain various types of fertilization.

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2. Q192 Write down the names of the compounds represented by these formulas: a) Al₂(SO₄) b) CaCl₂ c) K₂SO₄ d) KNO₃ e) CaCO₃ f) NH₄Cl

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3. Q193 Which of the following is an air borne disease?

   • a) COVID-19
   • b) HIV-AIDS
   • c) Jaundice
   • d) Dengue fever

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4. Q194 The technique used for separating camphor from a mixture of camphor and common salt is:-

   • a. Chromatography
   • b. Centrifugation
   • c. Filtration
   • d. Sublimation

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5. Q195 Which of the following microbes is responsible for conversion of milk into curd?

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6. Q196 What is the climate? Explain with examples.

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7. Q197 All substances are made up of very ____ particles.

   • a. large
   • b. tiny
   • c. few
   • d. much

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8. Q198 In which BCE the ancient Olympic game was started?

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9. Q199 Evelyn concealed her growing deafness from friends and teachers because _____________.

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10. Q200 What do you understand about conservation of water?

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