Environment Quiz Book E-Book

Manasvi Vohra

• Herausgeber: V&S Publishers
• Kategorie: Lebensstil
• Sprache: Englisch
• Veröffentlichungsjahr: 2018

Seitenzahl: 91

Beschreibung

Learn important aspects of environment trough Quizzes for knowledge and pleasure

Leseprobe

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© Copyright: ISBN 978-935-05723-7-5

DISCLAIMER

While every attempt has been made to provide accurate and timely information in this book, neither the author nor the publisher assumes any responsibility for errors, unintended omissions or commissions detected therein. The author and publisher make no representation or warranty with respect to the comprehensiveness or completeness of the contents provided.

All matters included have been simplified under professional guidance for general information only without any warranty for applicability on an individual. Any mention of an organization or a website in the book by way of citation or as a source of additional information doesn't imply the endorsement of the content either by the author or the publisher. It is possible that websites cited may have changed or removed between the time of editing and publishing the book.

Results from using the expert opinion in this book will be totally dependent on individual circumstances and factors beyond the control of the author and the publisher.

It makes sense to elicit advice from well informed sources before implementing the ideas given in the book. The reader assumes full responsibility for the consequences arising out from reading this book. For proper guidance, it is advisable to read the book under the watchful eyes of parents/guardian. The purchaser of this book assumes all responsibility for the use of given materials and information. The copyright of the entire content of this book rests with the author/publisher. Any infringement/ transmission of the cover design, text or illustrations, in any form, by any means, by any entity will invite legal action and be responsible for consequences thereon.

Publisher’s Note

We all know the importance of environment and the environmental factors that influence our lives, in fact our very existence. Today, people have become more and more conscious towards a healthier environment formulating policies, programmes and means to improve and safeguard the environment from various detrimental factors, such as pollution, global warming, deforestation, natural and man-made disasters, etc.

The Environment Quiz Book serves as a comprehensive and complete package containing exhaustive information about the environment, the factors influencing it, the salient inventions and discoveries relating to the ever-changing environment and answers to the innumerable questions that arise in our minds, particularly the young minds of school and college going students. The book has been divided into separate sections with simple and intersasting Questions, Fill in the Blanks, Multiple Choice Questions, True & False, Word Search & Crossword –all with Soutions to satisfy the readers’ curiosities and enrich their knowledge and awareness towards the environment.

Basically, the book aims to arouse the readers’ interests towards the many different and unique environmental phenomena occuring always all around us and also to enlighten the readers towards a healthier, cleaner and safer environment.

Questions & Answers

Q-1. What is the natural surroundings in which an organism lives called?

Ans. The natural surroundings in which an organism lives is called its habitat.

Q-2. When is the Earth Environment Day celebrated?

Ans. June 5.

Q-3. What is air made up of?

Ans. Air is made up of mainly oxygen (O) and nitrogen (N), small amounts of water vapour, argon, and carbon dioxide, along with small traces of other gases.

Q-4. When is the Earth Day celebrated?

Ans. April 22.

Q-5. What does recycling mean?

Ans. Recycling means to extract materials from waste and reuse it.

Q-6. What are the three R’s of recycling?

Ans. The three R’s of recycling are reduce, reuse and recycle.

Q-7. What is deforestation?

Ans. The permanent cutting or destruction of forests is called deforestation.

Q-8. How much of the earth is covered by water?

Ans. Approximately 70% of the earth is covered by water.

Q-9. When is the World Water Day celebrated?

Ans. March 22.

RADIOACTIVITY

Q-10. What is an isotope?

Ans. When an element exists in more than one form with different mass numbers (due to varying number of neutrons), it is said to have isotopes. For example, Carbon-12, Carbon-13 and Carbon-14 are isotopes of carbon.

Q-11. What is radioactivity?

Ans. Radioactivity is the emission of high energy from unstable atoms. The nuclei of these atoms break down and release energy. It may be natural or artificial.

Q-12. What are the components of radiation produced during radioactivity?

Ans. Alpha rays, beta rays and gamma rays are the chief components of radiation produced during radioactivity.

Q-13. Who discovered the phenomenon of natural radioactivity?

Ans. Natural radioactivity was first discovered by a French scientist, Henri Becquerel in 1896.

Q-14. Name one beneficial and one harmful use of radioactivity in modern world.

Ans. Radioactivity is used in cancer treatments. However, the principle of radioactivity is also used in the atomic bombs.

Q-15. When did the first atomic bomb explosion take place?

Ans. The first atomic bomb explosion took place in the Japanese city of Hiroshima on August 6, 1945 during World War II.

OZONE LAYER

Q-16. What is the ozone layer?

Ans. Ozone layer is a layer of ozone molecules in the stratosphere which protects the earth from the harmful ultraviolet rays of the sun.

Mushroom cloud of atomic bomb explosion

Q-17. What is ozone hole?

Ans. An ozone hole is a geographical area above the Antarctic region where the concentration ofozone molecules has decreased, thus thinning the ozone layer.

Q-18. What causes the depletion of ozone molecules?

Ans. Production of certain man-made chlorine compounds like chlorofluorocarbons (CFCs), methyl chloroform and carbon tetrachloride cause the depletion of ozone molecules.

Q-19. When was the hole in the ozone layer first discovered?

Ans. The hole in the ozone layer was first discovered in 1985 by British scientists Joseph Farman, Brian Gardiner and Jonathan Shanklin.

Q-20. What is Montreal Protocol?

Ans. The Montreal Protocol on Substances that Deplete the Ozone Layer is an international agreement signed in 1987 and ratified by most countries towards phasing out the production of substances that cause the depletion of the ozone layer.

Q-21. When did India sign the Montreal Protocol?

Ans. India signed the Montreal Protocol in 1992.

GLOBAL WARMING

Q-22. What are greenhouse gases?

Ans. Greenhouse gases are gases which trap the heat in the atmosphere, e.g. carbon dioxide.

Q-23. What is global warming?

Ans. Global warming is the steady increase ofthe earth’s temperature.

Q-24. What are the man-made causes of global warming?

Ans. The greenhouse gases produced by human activities and rampant deforestation are the two main man-made causes of global warming.

Q-25. What are the effects of global warming?

Ans. Extreme weather, melting of glaciers, increase in the sea level and climate changes are some of the effects of global warming.

Q-26. What is Kyoto Protocol?

Ans. Kyoto Protocol is an international agreement aimed at controlling the emission of greenhouse gases.

Q-27. When and where was Kyoto Protocol signed?

Ans. Kyoto Protocol was first adopted in 1997 in Kyoto, Japan.

Q-28. According to the Indian constitution, it is the state’s and citizens’ responsibility to protect the environment. Is it true or false?

Ans. Yes, it is true.

POPULATION

Q-29. Which is the most populated country in the world?

Ans. China.

Q-30. How is population density of a place measured?

Ans. The population density of a place is measured in terms of population per unit area.

Q-31. Which country or state has the highest population density in the world?

Ans. Monaco.

Q-32. State two effects of overpopulation on the earth.

Ans. Depletion of natural resources and destruction of ecosystems are the two effects caused by overpopulation on the earth.

EXTINCTION

Q-33. What do you mean by extinction of a species?

Ans. A species becomes extinct when all the members of the species die out.

Q-34. State any two causes of animal extinction.

Ans. Poaching (or illegal hunting) and habitat destruction are two causes of animal extinction.

Q-35. Name any two animals that have become extinct in recent times.

Ans. Tasmanian wolf and Japanese sea lion are among animals that have become extinct in recent times.

Q-36. Name one bird that has become extinct.

Ans. Dodo is a bird species that became extinct before the 18th century.

Dodo

Q-37. Name any two critically endangered species in India.

Ans. Long-billed vulture and gharial are among the two critically endangered species in India.

ECOSYSTEM

Q-38. What is an ecosystem?

Ans. An ecosystem is an ecological community consisting of biotic, abiotic as well as components which interact with each other and function as a single unit.

Q-39. List the three main types of ecosystems.

Ans. The three main types of ecosystems are:

– Freshwater ecosystem– Terrestrial ecosystem–Ocean ecosystem

Q-40. What is a terrestrial ecosystem?

Ans. A terrestrial ecosystem is an ecosystem formed on a landform.

Q-41. Which categories can a terrestrial ecosystem be divided into?

Ans. A terrestrial ecosystem can be divided into these main categories: tropical rainforest, taiga, desert, savanna and tundra.

Q-42. Give one example of a tropical rainforest ecosystem.

Ans. Amazon rainforest is an example of a tropical rainforest ecosystem.

Q-43. Give one characteristic of a savanna.

Ans. A savanna is a grassland ecosystem characterised by wide spaces between trees and seasonal rainfall.

Q-44. What is taiga?

Ans. Taiga is a belt of coniferous forests that is usually found in the northern hemisphere in difficult weather conditions.

Savanna grasslands

Q-45. Give one example of a desert ecosystem.

Ans. The Sahara desert in Africa is an example of a desert ecosystem.

Q-46. Give two characteristics of a tundra ecosystem.

Ans. Extremely cold climate and low biodiversity are two characteristics of a tundra ecosystem.

CONSERVATION

Q-47. What is conservation?

Ans. Conservation is the act of preservation, protection and restoration of the natural environment.

Q-48. What does UNEP stand for?

Ans. UNEP stands for the United Nations Environment Programme.

Q-49. What is the role of UNEP?

Ans. UNEP helps and encourages countries to formulate and implement environment-related policies. It coordinates all environmental activities of the United Nations (UN).

Q-50. When was UNEP established?

Ans. UNEP was established in June 1972 in Nairobi, Kenya.

Q-51. What is ecology?

Ans. Ecology is the study of living beings and their relationship with their surroundings.

Q-52. Who coined the word ‘ecology’?

Ans. The word ‘ecology’ was coined by Ernst Haeckel in 1866.

Q-53. What are the four important components of an ecosystem?

Ans. The four important components of an ecosystem are: environment, producers, consumers and decomposers.

Q-54. Who are the producers in an ecosystem?

Ans. Green plants/trees are the producers in an ecosystem.

Q-55. Who are the consumers in an ecosystem?

Ans. Animals are the consumers in an ecosystem.

Q-56. Who are the decomposers in an ecosystem?

Ans.