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Subjects
Biology CBSE Live product
Class 8 (2025-26)
How nature works in harmony
Populations, communities, and interactions
8.
Ecosystems based on formation
Question:
5
m.
Study the image and write your answers below.
An
aquarium
ocean
garden
desert
pond
forest
paddy field
park
is a
naturally ecosystem
man-made ecosystem
It contains
plants, soil, and insects
contains fish, plants, and microorganisms
trees, animals, decomposers, and microorganisms
ornamental plants, birds, and small animals
phytoplankton, fish, and whales
rice plants, soil microbes, and water
fish, algae, and insects
cacti, snakes, and lizards
Other examples are
wheat fields and vegetable farms
terrariums and fish tanks
seas and coral reefs
grasslands and tundras
lakes, rivers, and forests
city gardens and theme parks
parks and lawns
rainforests, mangroves, and grasslands
It can
human assistance for watering, pruning, and fertilization.
on humans for survival and productivity.
function independently without human aid.
sustain itself independently through self-regulating ecological processes.
exist independently by maintaining energy flow among organisms.
human assistance to maintain oxygen and nutrient balance.
human care to sustain balance and cleanliness.
survive on its own through balanced nutrient and energy cycles.
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