MCQ Science and Technology Part II Class 10 Chapter 4 Maharashtra Board Environmental management 1. What forms an ecosystem according to the document?Only abiotic factorsBiotic and abiotic factors interacting with each otherOnly living organismsA single speciesQuestion 1 of 202. Which ecosystem component is responsible for producing food?DecomposersPredatorsProducersHerbivoresQuestion 2 of 203. Why are predators like lions and tigers important in ecosystems?They produce nutrientsThey prevent overpopulation of herbivoresThey decompose organic matterThey regulate water cyclesQuestion 3 of 204. What role do organisms like termites and caterpillars play in ecosystems?They act as primary producersThey clean the environmentThey control predator populationsThey transport waterQuestion 4 of 205. What would be the consequence if dead trees and carcasses were not decomposed?Ecosystems would remain stableNutrient cycles would be disruptedHerbivore populations would decreasePredators would declineQuestion 5 of 206. How is the environment defined in the document?Only human-made structuresPhysical, chemical, and biological factors affecting organismsA single ecosystemOnly abiotic factorsQuestion 6 of 207. How many main types of environment are described in the document?OneTwoThreeFourQuestion 7 of 208. What does the natural environment include?Only artificial structuresAir, atmosphere, water, land, and living organismsOnly human activitiesOnly chemical factorsQuestion 8 of 209. What is ecology, as per the document?The study of human impacts onlyThe study of interactions between biotic and abiotic factorsThe study of artificial environmentsThe study of abiotic factors aloneQuestion 9 of 2010. What is the basic unit used to study ecology?SpeciesFood chainEcosystemPopulationQuestion 10 of 2011. Which natural cycle is mentioned as maintaining environmental balance?Rock cycleNitrogen cycleEnergy cycleFood cycleQuestion 11 of 2012. Why is the Earth said to be on lease from future generations?It is an ancestral propertyHumans must conserve it for future generationsIt belongs only to current generationsIt is indestructibleQuestion 12 of 2013. What causes an imbalance in the environment?Stable ecosystemsHarm from natural and artificial polluted factorsIncreased biodiversityBalanced biotic interactionsQuestion 13 of 2014. What is environmental pollution, as defined in the document?Only natural changes in ecosystemsUnacceptable changes due to natural or human activitiesOnly artificial air pollutionOnly natural disastersQuestion 14 of 2015. Which factor contributes to environmental pollution?Planned urbanizationNatural forest growthPopulation explosionBalanced population growthQuestion 15 of 2016. Which type of pollution is listed in the document?Electrical pollutionThermal pollutionMagnetic pollutionBiological pollutionQuestion 16 of 2017. What is a natural source of radioactive pollution mentioned in the document?Atomic energy plantsX-raysUV and IR radiationsIndustrial emissionsQuestion 17 of 2018. What is an effect of high X-ray radiation exposure?Enhanced tissue growthImproved visionCancerous ulcerationGenetic stabilityQuestion 18 of 2019. Why is pollution control emphasized as important in the document?To promote industrializationTo prevent harm to humans and living beingsTo encourage deforestationTo increase urbanizationQuestion 19 of 2020. What is required for environmental protection to be effective?Reduced public participationLarge-scale public participationIncreased industrial activityIsolation of ecosystemsQuestion 20 of 20 Loading...
Leave a Reply