Environmental Science Past Paper 22447 PDF

File Subject: 22447 ### Question 1: The movement Pani Panchayath was initiated to conserve waters in the drought-prone areas of state - Gujrat - Andhra Pradesh - Maharashtra - Karnatak ### Question 3: Public awareness of environment creates - Environment degradation - Environment protection - Envi...

File Subject: 22447 ### Question 1: The movement Pani Panchayath was initiated to conserve waters in the drought-prone areas of state - Gujrat - Andhra Pradesh - Maharashtra - Karnatak ### Question 3: Public awareness of environment creates - Environment degradation - Environment protection - Environmental loss - Environmental cultivation ### Question 7: Which among the following crops would enrich the Nitrogen content in the soil? - Potato - Sorghum - Pea - Sunflower ### Question 14: Construction of dams causes - Submerges forest - Loss of wild life habitat - Damages down stream ecosystem - All of these ### Question 15: Percentage of total water found as fresh water is - 87.5% - 2.5% - 97.5% - 75% ### Question 16: The main green house gas absorbed by the forests as a raw material for photosynthesis is - CO2 - O2 - SO2 - O3 ### Question 17: Mineral resources are - Renewable - Available in plenty - Non renewable - Equally distributed ### Question 20: Water is used as ______ in industry - solvent - cooling agent - Cleaning agent - all of the above ### Question 21: Forests are extremely important because they - provide clean water and clean air - provide habitat for wild life - provide recreation and a change from the hectic urban - all of the above ### Question 22: Soil conservation is a process in which - Soil is aerated - Soil erosion - Sterile soil is made fertile - Soil is protected against loss ### Question 23: Farmers have a tendency to - Use optimum quantity of water - To over irrigate their crops - To conserve water - All of the above ### Question 24: Effect of modern agriculture on soil is due to - Erosion - Acidification - Salinization - All ### Question 25: An increase in carbon dioxide content in the atmosphere would not cause - more heat to be retained by the environment - increase in photosynthesis in plants - global warming - abundance of desert plants ### Question 26: Which is an example of non-renewable resource? - Wind - Vegetation - Coal and Minerals - Water ### Question 27: A wetland ecosystem is drained and converted into a residential area. What potential consequence might result from this conversion? - Loss of crucial water filteration services - Improved flood control in the region - Increased availability of wetland plants - None of the above ### Question 28: A pond ecosystem is dominated by algae, leading to limited sunlight penetration and reduced oxygen levels. A group of frogs is introduced to the pond, and their population begins to increase. What term describes the frogs in this scenario? - Primary consumer - Decomposer - Invasive species - None of the above ### Question 29: Grass is categorized as ____ in grazer food chain. - Plant - Consumer - Producer - None of the above ### Question 30: Eutrophication is - An improved water quality status of lakes. - A process in the carbon cycles. - The result of accumulation of plant nutrients and minerals in water bodies. - A water purification technique. ### Question 31: MAB programme stands for - Man and biology - Man and biosphere - Man and biotechnology - Material and biology ### Question 32: The phenomenon of accumulation of non-biodegradable contaminants in higher trophic level is known as - Bioprospecting - Bio piracy - Bio magnification - Bioremediation ### Question 33: The cyclization of matter through the atmosphere, hydrosphere, biosphere and lithosphere is known as - Food web - Material cycling - Bio magnification - Biogeochemical cycle ### Question 34: Coral reef is an Example of _____ type of Ecosystem. - Aquatic - Terrestrial - Organic - None of the above ### Question 36: Man engineered ecosystem consists of _____. - Desert and forest ecosystem - Agriculture and aquaculture ecosystem - Grassland and tree - All of the above ### Question 38: In the Nitrogen cycle, the transformation of gaseous nitrogen into nitrogen-containing compounds is performed primarily by - Bacteria - Fungi - Green plants - Herbivores ### Question 39: The quality of the air is _____ if AQI is in the range 201-300. - Good - Moderate - Poor - Very Poor ### Question 40: Which of these is not air pollution control equipment? - Electrostatic Separator - Cyclone separators - Fabric Filters - None of these ### Question 41: PM2.5 affects - Lungs - Liver - Brain - Stomach ### Question 42: Which one of the following converts toxic gases and air pollutants in exhaust to less toxic pollutants? - Pollution converter - Exhaust converter - Catalytic converter - Gas converter ### Question 43: Water having DO content below _____ is considered to be highly polluted. - 8.0 mg/L - 4.0 mg/L - 11.2 mg/L - 0.1 mg/L ### Question 45: Types of solid waste include _____. - Garbage - Refuse - Sludge - All of the above ### Question 46: Global warming is caused due to _____. - VOCs - Exhaust gases - Greenhouse gases - None of the above ### Question 47: Which air pollutant is present in vehicular emissions? - Ozone - Carbon Monoxide - Carbon Dioxide - Sulphur dioxide ### Question 48: PUC for vehicles stands for _____. - Pollution Upto Control - Pollution Under Check - Pollution Under Control - Pollution Upto Check ### Question 50: The smaller particles such as dust, smoke etc. which remain suspended for a long period in the air are called _____. - Settleable particles - Gaseous pollutants - Suspended particles - Micro Pollutants ### Question 51: What is BOD? - Usually less than COD - A measure of organic matter present in water - Biochemical oxygen demand - All of the above ### Question 52: Increase in concentration of soluble salts in the soil is called _____. - soilification - soluble-soil - desalination - salination ### Question 53: The presence of high coli form in water indicates _____. - pnospnorous contamination - contamination by human waste - decreased BOD - Hydrocarbon contamination ### Question 54: Industrial, transport and cultural activities are the main cause of _____. - Noise pollution - Generation of sound - Both a and b - None of these ### Question 55: The most serious environmental effect posed by hazardous wastes is _____. - air pollution - increased use of land for landfills - contamination of groundwater - destruction of habitats ### Question 56: Which of the following air pollution control devices is suitable for removing the finest dust from air? - Clarifier - Flash Mixer - Electrostatic precipitator - none of above ### Question 57: Reactive, flammable, corrosive, and toxic are characteristics of _____ waste. - Non-hazardous - Hazardous - Domestic - All of the above ### Question 58: Which of the following devices is suitable for the removal of gaseous pollutants? - clarifier mechanism - Aerators - Wet scrubber - Filter ### Question 59: Damanganga-Pinjal Link is a _____. - Dam - Interlinking of rivers - Hydro power plant - Highway ### Question 60: The image shows a diagram of a house with a rain water harvesting system. ### Question 61: Challenges in river interlinking are _____. - environmental impact - impact on society - both a and b - reduce encroachment. ### Question 62: The image shows a diagram of a box type solar cooker. ### Question 64: Water Prevention and Control of Pollution Act came into existence in _____. - 1974 - 1975 - 1976 - 1977 ### Question 66: The River interlink projects in India are managed by _____. - National River Development Agency - National Resource Development Agency - National Water Development Agency - National Environment Agency ### Question 67: Water shed management is very important to supply water for _____. - Irrigation - Domestic use, reducing floods, and droughts - Hydropower generation and transportation - All the above ### Question 68: The source of Geothermal energy is _____. - Burning of coal - Interior of the earth - Sun - Flowing water ### Question 69: The Development that meets the needs of the present generation without compromising the life quality of future generation is _____. - Environment Development - Sustainable Development - Environment Protection - Environment Conservation