Class 10 - Science - Ch9 - Heredity and evolution (Q & A)+NCERT Solutions
Heredity and evolution (Q & A)+NCERT Solutions Apeman evolution Q1: Define Heredity. Answer: Heredity refers to the process by which certain features (heritable characteristi
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CBSE - Class 10 - Ch4 - Soaps and Detergents
Soaps and Detergents Soap & Detergents (Concept Map) Q1: Why soap does not work well with hard water containing Ca2+ or Mg2+ ions? Answer: Because it reacts with Ca2+ or Mg2+ to forma whit
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CBSE - Class 10 - Biology - Chapter 15 - Our Environment
Chapter: Our Environment Q1: Define Ecology Answer: Ecology is a scientific study of the interactions between organisms and the environment. Ecology integrates all areas of biological research a
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Why do people- having skin problems- are advised not to wear violet or red clothes?
Q: Why do people- having skin problems- are advised not to wear violet clothes? Answer: Violet rays coming from the sun carry high energy. Once such radiation falls on the thin skin- it reacts
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Class 10 - Chapter 4- Carbon and its Compunds (Short Questions & Answers)
Class 10 - Chapter 4- Carbon and its Compounds Methane Structure (Short Questions & Answers) Q1: State whether the following are true or false a. B
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