Environment & Biodiversity MCQs

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Permaculture is a method of developing ecologically harmonious, efficient, and sustainable means of farming. The Agroforestry and mixed farming uses a land management system in which trees or shrubs or crops and livestock are raised together. Hence all three are elements of sustainable agriculture.

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The National Disaster Management Authority, which is also termed as NDMA, is an apex body of the Government of India which mandates to lay down different policies for disaster management. It is headed by the Prime Minister of India.

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Climate change can be defined as the ongoing rise in the average temperature of the Earth’s climate system. From all the given options only climate change is not a natural hazard but is induced by human activities.

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A landslide is the movement of rock, earth, or debris down a sloped section of land. It is mainly caused due to a variety of factors. some of the man-made factors are- Deforestation, removal of the upper layer of soil, etc and the natural causes are rain, earthquake, etc.

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The Banyan tree is a type of fig tree native to India. It is scientifically known as Ficus benghalensis. Banyan trees are considered the largest trees in the world in terms of the area they cover. They have a long lifespan and can survive for several centuries. A Banyan seed grows on another tree as an epiphyte, eventually surrounding the host tree and living independently.

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Kewra or keya bushes are also the most common vegetation
of these forests, which grow in clumps
or group. Kewra is widely utilized as a plantation species to create a shelter belt along the coastal areas and offshore islands of Bangladesh.

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The three R’s of eco-friendly living are: Reduce, Reuse and Recycle. They all help to cut down on the amount of waste, we throw away. They conserve natural resources, landfill space and energy.

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Basel Convention is an international treaty that was designed to reduce the movements of hazardous waste between nations, and specifically to prevent transfer of hazardous waste from developed to less developed countries (LDCs). It ultimately aims at biodiversity conservation.

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• The Gaia hypothesis proposes that living organisms interact with their inorganic surroundings on Earth to form a synergistic and self-regulating, complex system that helps to maintain and perpetuate the conditions for life on the planet.

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The Atlantic Forest South-East Reserves, a UNESCO World Heritage site, encompasses 25 protected areas spanning 4,700 km² in Brazil. It features diverse landscapes from karst mountains to coastal wetlands, showcasing exceptional scenic beauty. The site is home to over 450 tree species per hectare, with 70% of tree species, 85% of primates, and 39% of mammals being endemic. It supports 120 mammal species, including the jaguar and black-faced lion tamarin, and 350 bird species. The area contains the largest number of karst caves in Brazil and is a crucial ecological corridor for the Atlantic Forest biome. Despite being one of the most threatened biomes, the site remains a vital hub for biodiversity conservation and research.