Unit 1 EST Past Paper PDF

Unit-1 Environment Abiotic environment does not include Chief source of energy in environment Energy is returned to the atmosphere is...... in the form of Rec...

Unit-1 Environment Abiotic environment does not include Chief source of energy in environment Energy is returned to the atmosphere is...... in the form of Recall/ Remembering Understanding Application a) air a) Sun a) potential energy b) water b) Fire b) metabolic energy c) soil c) Moon c) heat d) Plants d) Stars d) vapors Ans: Ans: Ans: Set 1- No1:Which of the following is the Set 1- No2: Zone consisting air, water and Set 1- No3: Formation of Ozone is? example of impact of development soil is known as.... activities on Hydrosphere? Recall/ Remembering Understanding Application a) Air Pollution a) Atmosphere a) Oxidation Reaction b) Soil Pollution b) Hydrosphere b) Reduction Reaction c) Noise Pollution c) Biosphere c) Photochemical Reaction d) Water Pollution d) Lithosphere d) None of the above Ans: Ans: Ans: One of the following is not a type of Social Environment includes... Physical environment is also called as... environment. Recall/ Remembering Understanding Application b) Physical environment e) Traditions, a) Abiotic environment f) Man made environment b) ethics, b) Biotic environment g) Social environment c) Culture c) Man made environment h) hydrosphere d) All of the above d) Psychological environment Ans: Ans: Ans: The term environment is derived from an Which of the Following is not the impact Major cause of increment in population old French word “ënviro” means.... of acid rain? growth is...... Recall/ Remembering Understanding Application a) Outside a) Acidification of soil a) decrease in birth rate b) Inside b) Deterioration of buildings b) decrease in mortality rate c) Surroundings c) Loss of crops c) illiteracy d) Biotic community d) Improve the taste of water d) none of the above Ans: Ans: Ans: Which of the following is not a Which one of the following is not a The 4Rs principle is applicable for… component of 4Rs? recyclable waste? Recall/ Remembering Understanding Application a) Reduce a) Metal a) Public awareness b) Resell b) Plastic b) Environmental protection c) Reuse c) Sand c) Saving natural resources d) Recover d) Glass d) All of the above Ans: Ans: Ans: Layer which saves life from harmful Greenhouse gases which is present in Burning of fossil fuels effects of UV radiations is known as very high quantity is Recall/ Remembering Understanding Application a) Ozone Layer a) Prophen a) Decrease green house gases b) Alpha Layer b) Ethane b) Increase green house gases c) Gama Layer c) Carbon di-oxide c) Increase level of oxygen d) Infra Red Layer d) Methane d)Increase level of ethane Ans: Ans: Ans: One which is not considered as The most harmful environmental Height of ozone above surface of naturally occurring greenhouse gas is pollution from nuclear reactor is Earth is Recall/ Remembering Understanding Application a) Carbon di-oxyde a) radioactivity a) 30 – 50 kms b) Methane b) particulate formation b) 10 – 20 kms c) nitrous oxide c) thermal pollution c) 15 – 30 kms d) ethane d) Noise Pollution i) 50 – 70 kms Ans: Ans: Ans: Ozone layer is found What type of radiation Biotic environment Greenhouse gases Color of ozone in.... is trapped on the includes which is present in molecule is earth's surface by the very high quantity is green house effect? Recall/ Remembering Understanding Application Understanding Application a) Thermosphere a) UV rays a) producers a) Prophen a) Blue b) Stratosphere b) ? -rays b) consumers b) Ethane b) White c) Troposphere c) X-rays c) decomposers c) Carbon di-oxide c) Pale Yellow d) Mesosphere d) IR rays d)All above d) Methane d)Pale Green Ans: Ans: Ans: Ans: Ans: 71% of earth surface Of the total water on Nitrous oxide Public awareness of Major cause of Ozone is covered with: the Earth, fresh water (commonly called environment creates depletion is due to reserves constitue laughing gas) has ---------------------- which chemical ? approximately– been a matter of concern to environmentalist recently because– Recall/ Remembering Understanding Application Understanding Application a) Land a) 70 % a) it is thought to a) Environment a) cause cancer at low protection Chlorofluorocarbons concentration b) Air b) 2.7% b) it produce b) Environment b) Polyphenols photochemical smog degradation c) Water c) 27 % c) it is a green house c) Environmental c) Dioxins gas improvement d) Coal d) 8.9 % j) None of the above d) Environmental k) None of the above cultivation Ans: Ans: Ans: Ans: Ans: Air is composed of What is troposphere? How is the The area where all Exchange of outgoing gases, water vapours atmosphere, the living organisms and incoming and......... hydrosphere and interact with each radiations that keep lithosphere connected other and their Earth warm is known ? environment is as ---------------- Recall/ Remembering Understanding Application Recall/ Remembering Application a) dust particles a) Portion of air a) Hydrological cycle a) biosphere a) greenhouse effect b) Rainfall b) Portion of water b) Nitrogen cycle b) exosphere b) radiation effect c) Snowfall c) Lowest layer of c) Oxygen cycle c) mesosphere c) infrared effect atmosphere where we survive d) light d) Portion of sky d) Carbon cycle d) None of the above d) ozone layer depletion Ans: Ans: Ans: Ans: Ans: The portion of the “Ozone Hole” is a The historical Ozone is formed in The amount of solar earth and its ------------------------ monument that is the upper atmosphere radiation reaching the environment which affected by acid rain by a photochemical surface of the earth is can support life is is reaction with called as known as Recall/ Remembering Recall/ Remembering Understanding Understanding Application a) crust a) Hole in the a) Taj Mahal a) Ultra violet solar a) Solar flux atmosphere radiation b) exosphere b) Destruction of b) Pyramid of Egypt b) Infra red b) Reflected light ozone layer radiation c) biosphere c) Hole in c) Pisa Tower c) Visible light c) Minerals hydrosphere d) mesosphere d) Hole in atmosphere d) Golden Temple d) All of the above d) solvents Ans: Ans: Ans: Ans: Ans: Biosphere is Which of the following Acid rain contains..... High level radioactive The objective of conceptual sphere of waste can be environmental the environment is managed in which of education is having the least the following ways? storage capacity for matter? Recall/ Remembering Understanding Recall/ Remembering Application Recall/ Remembering a) The solid shell of a) Atmosphere a) Sulphuric acid a) Open dumping a) Raise inorganic materials on consciousness the surface of the about environmental Earth education b) The thin shell of b) Lithosphere b) Hydrochloric acid b) Composting b) To teach organic matter on the environmentally surface of earth appropriate behaviour comprising of all the living things c) The sphere which c) Hydrosphere c) Oxalic acid c) Incineration c) Create an occupies the environmental ethic maximum volume of that fosters all the spheres awareness about ecological inter-dependence of economics, social and political d) All of the above d) Biosphere d) Acetic acid d) Dumping in sealed d) All of the above containers Ans: Ans: Ans: Ans: Ans: Which of the following Environmental The production of Which one of the The environment is an example of education is important biogas from the waste following is an abiotic which has been impact of only at is includes in...... component of the modified by human development ecosystem? activities is called activities on the Hydrosphere? Recall/ Remembering Understanding Application Understanding Application a) Air pollution a) Primary school a) Reduce a) Bacteria a) Natural stage environment b) Soil pollution b) Secondary school b) Reuse b) Plants b) Anthropogenic stage environment c) Soil erosion c) College stage c) Recycle c) Humus c) Modem environment d) Water pollution d) All of the above d) Recover d) Fungi d) Urban environment Ans: Ans: Ans: Ans: Ans: Important abiotic factor Atmosphere may Which of the following The 4Rs principle is Hydrosphere includes in environment include extents to a height of is the correct sequence applicable in… which of the following?......kms above the of 4Rs principle in earth surface waste hierarchy? Which of the following Environmental The production of Which one of the The environment is an example of education is important biogas from the waste following is an abiotic which has been impact of only at is includes in...... component of the modified by human development ecosystem? activities is called activities on the Hydrosphere? Recall/ Remembering Understanding Application Understanding Application a) Air pollution a) Primary school a) Reduce a) Bacteria a) Natural stage environment b) Soil pollution b) Secondary school b) Reuse b) Plants b) Anthropogenic stage environment c) Soil erosion c) College stage c) Recycle c) Humus c) Modem environment d) Water pollution d) All of the above d) Recover d) Fungi d) Urban environment Ans: Ans: Ans: Ans: Ans: Recall/ Remembering Understanding Application Understanding Application a) Animal a) Temperature a) 80 a) a) Agriculture areas Reduce-Reuse-Recyc le-Recover b) Plants b) Wind b) 8000 b) b) Industrial areas Recover-Recycle-Reu se-Reduce c) Soil c) Water c) 800 c) Recycle – Recover c) Municipal areas – Reuse- Reduce d) Water bodies d) All of the above d) 8 d) d) All of the above Reuse-Recover-Redu ce - Recycle Ans: Ans: Ans: Ans: Ans: