Govt Exams
Bioaccumulation and biomagnification increase at higher trophic levels. Top predators accumulate the highest pesticide concentrations.
While multiple factors contribute to ocean health, addressing single-use plastic directly tackles the primary source of marine plastic pollution through policy and behavioral change.
The tragedy of the commons occurs when individuals act in self-interest to exploit shared resources (like fisheries or forests), leading to overall depletion and collective loss.
Himalayan glaciers are melting at accelerated rates due to climate change, threatening water supplies for millions in northern India and affecting downstream agriculture.
Biomagnification causes toxic substances like DDT and heavy metals to accumulate in higher concentrations as they move up the food chain, affecting apex predators most severely.
Rhizobium bacteria form symbiotic relationships with legume roots, fixing atmospheric nitrogen into ammonia and nitrates usable by plants.
While habitat is 'where' an organism lives, niche describes 'how' it lives—its function, food preferences, behavioral patterns, and ecological role.
Habitat fragmentation is predominantly caused by human activities like agricultural development, construction, and urban sprawl, dividing continuous ecosystems into isolated patches.
Carrying capacity is the maximum population size an environment can sustain indefinitely, determined by food, water, space, and other limiting factors.
Nitrogen fixation is the process where atmospheric N₂ is converted to ammonia by nitrogen-fixing bacteria, making it available to organisms.