Preparing for OSSSC RI, ARI, Amin, SFS, and ICDS Supervisor exams requires a comprehensive understanding of ecosystems, as they play a crucial role in sustaining life on Earth. Ecosystems are diverse and varied, ranging from terrestrial to aquatic environments, each with its unique characteristics and components. Terrestrial ecosystems include forests, grasslands, deserts, and mountains. Forest ecosystems, for instance, are vital for biodiversity and carbon sequestration, while grassland ecosystems support grazing animals and provide habitat for various species. Desert ecosystems, with their extreme dry conditions, showcase remarkable adaptations in flora and fauna, while mountain ecosystems, characterized by high altitudes and diverse climates, play a crucial role in regulating water flow and supporting unique species.
Top 30 Ecosystems MCQS For OSSSC RI,ARI, Amin, SFS, ICDS Supervisor
In summary, a comprehensive knowledge of ecosystems is fundamental for OSSSC RI, ARI, Amin, SFS, and ICDS Supervisor exams, as it not only enriches understanding of environmental science but also highlights the interconnectedness of all living organisms and their surroundings.
- Who first coined the term “ecosystem”?
a) Charles Darwin
b) Gregor Mendel
c) AG Tansley
d) Albert Einstein
Answer: c) AG Tansley - Which of the following is NOT a type of terrestrial ecosystem?
a) Forest Ecosystems
b) Grassland Ecosystems
c) Desert Ecosystems
d) Marine Ecosystems
Answer: d) Marine Ecosystems - What characterizes desert ecosystems?
a) High precipitation
b) Abundance of water bodies
c) Dry conditions
d) Dense vegetation
Answer: c) Dry conditions - Where are mountain ecosystems found?
a) Only in Europe
b) Only in Africa
c) Only in Asia
d) All over the world
Answer: d) All over the world - What is the role of mountain ecosystems?
a) Regulating water flow
b) Sustaining aquatic life
c) Providing desert conditions
d) None of the above
Answer: a) Regulating water flow - Which type of ecosystem is characterized by large expanses of grasses and herbs?
a) Desert Ecosystems
b) Forest Ecosystems
c) Grassland Ecosystems
d) Mountain Ecosystems
Answer: c) Grassland Ecosystems - What do aquatic ecosystems include?
a) Only oceans
b) Only rivers
c) Only lakes
d) Oceans, seas, rivers, and wetlands
Answer: d) Oceans, seas, rivers, and wetlands - Which component is NOT part of an ecosystem?
a) Soil
b) Water
c) Air
d) Rocks
Answer: d) Rocks - What is the significance of interdependence in ecosystems?
a) It ensures the availability of nutrients
b) It maintains ecological balance
c) It provides energy flow
d) It regulates water flow
Answer: b) It maintains ecological balance - How is sunlight converted into chemical energy in ecosystems?
a) Through photosynthesis
b) Through respiration
c) Through decomposition
d) Through predation
Answer: a) Through photosynthesis - Which process ensures the availability of essential nutrients in ecosystems?
a) Energy flow
b) Nutrient cycling
c) Interdependence
d) Abiotic components
Answer: b) Nutrient cycling - Which type of ecosystem exhibits remarkable adaptations in flora and fauna to survive in dry conditions?
a) Grassland Ecosystems
b) Forest Ecosystems
c) Desert Ecosystems
d) Mountain Ecosystems
Answer: c) Desert Ecosystems - What do freshwater ecosystems include?
a) Only lakes
b) Only rivers
c) Only wetlands
d) Lakes, rivers, and wetlands
Answer: d) Lakes, rivers, and wetlands - Which ecosystems are found in regions with steep terrain and high altitude?
a) Desert ecosystems
b) Forest ecosystems
c) Grassland ecosystems
d) Mountain ecosystems
Answer: d) Mountain ecosystems - Who was the English botanist who first used the term “ecosystem”?
a) Charles Darwin
b) AG Tansley
c) Gregor Mendel
d) Albert Einstein
Answer: b) AG Tansley - Which type of terrestrial ecosystem is characterized by large expanses of grasses and herbs?
a) Forest Ecosystems
b) Grassland Ecosystems
c) Desert Ecosystems
d) Mountain Ecosystems
Answer: b) Grassland Ecosystems - In which type of terrestrial ecosystem do plants and animals exhibit remarkable adaptations to survive in dry conditions?
a) Forest Ecosystems
b) Grassland Ecosystems
c) Desert Ecosystems
d) Mountain Ecosystems
Answer: c) Desert Ecosystems - What type of terrestrial ecosystem is found in steep terrain with high altitude and a wide range of climatic conditions?
a) Forest Ecosystems
b) Grassland Ecosystems
c) Desert Ecosystems
d) Mountain Ecosystems
Answer: d) Mountain Ecosystems - Which ecosystem is home to a wide variety of plant and animal species and includes tropical, temperate, and boreal varieties?
a) Forest Ecosystems
b) Grassland Ecosystems
c) Desert Ecosystems
d) Mountain Ecosystems
Answer: a) Forest Ecosystems - Which type of ecosystem plays a crucial role in maintaining biodiversity, regulating water flow, and providing various ecosystem services?
a) Forest Ecosystems
b) Grassland Ecosystems
c) Desert Ecosystems
d) Mountain Ecosystems
Answer: d) Mountain Ecosystems - Which terrestrial ecosystem is characterized by broad prairies, savannas, and steppes?
a) Forest Ecosystems
b) Grassland Ecosystems
c) Desert Ecosystems
d) Mountain Ecosystems
Answer: b) Grassland Ecosystems - Where are mountain ecosystems found?
a) Only in South America
b) Only in Asia
c) All over the world
d) Only in Europe
Answer: c) All over the world - Which ecosystem is known for its role in regulating water flow?
a) Forest Ecosystems
b) Grassland Ecosystems
c) Desert Ecosystems
d) Mountain Ecosystems
Answer: d) Mountain Ecosystems - Which ecosystem is characterized by survival in dry conditions?
a) Forest Ecosystems
b) Grassland Ecosystems
c) Desert Ecosystems
d) Mountain Ecosystems
Answer: c) Desert Ecosystems - What is the primary vegetation in grassland ecosystems?
a) Trees
b) Shrubs
c) Grasses
d) Mosses
Answer: c) Grasses - Which type of aquatic ecosystem encompasses the world’s oceans, seas, and estuaries?
a) Freshwater Ecosystems
b) Marine Ecosystems
c) Estuarine Ecosystems
d) Riverine Ecosystems
Answer: b) Marine Ecosystems - What type of ecosystems include lakes, rivers, and wetlands?
a) Marine Ecosystems
b) Freshwater Ecosystems
c) Estuarine Ecosystems
d) Coastal Ecosystems
Answer: b) Freshwater Ecosystems - What are the non-living components of ecosystems referred to as?
a) Producers
b) Consumers
c) Biotic Components
d) Abiotic Components
Answer: d) Abiotic Components - What do organisms within an ecosystem depend on each other for?
a) Energy
b) Shelter
c) Resources
d) Sunlight
Answer: c) Resources - What is converted into chemical energy by producers in ecosystems?
a) Air
b) Water
c) Soil
d) Sunlight
Answer: d) Sunlight
