A large area with similar climate and ecosystems

Ecological Systems

Tổng câu hỏi trong bộ đề

Ecological Systems

Câu hỏi 1: What is an ecosystem?

A: A type of machine
B: A community of living organisms interacting with their environment
C: A factory system
D: A school building

Đáp án: B

Câu hỏi 2: Which of these is a freshwater ecosystem?

A: Ocean
B: Lake
C: Desert
D: Coral reef

Đáp án: B

Câu hỏi 3: What is the largest ecosystem on Earth?

A: Forest
B: Desert
C: Ocean
D: Lake

Đáp án: C

Câu hỏi 4: Which is a non-living part of an ecosystem?

A: Tree
B: Water
C: Fish
D: Bird

Đáp án: B

Câu hỏi 5: Which of the following is a producer in an ecosystem?

A: Lion
B: Grass
C: Tiger
D: Eagle

Đáp án: B

Câu hỏi 6: What do consumers eat in an ecosystem?

A: Stones
B: Other organisms
C: Air
D: Soil

Đáp án: B

Câu hỏi 7: Which of these is a decomposer?

A: Mushroom
B: Rabbit
C: Dog
D: Fish

Đáp án: A

Câu hỏi 8: Which ecosystem is characterized by high rainfall?

A: Desert
B: Rainforest
C: Grassland
D: Tundra

Đáp án: B

Câu hỏi 9: What is biodiversity?

A: Only one type of species
B: The variety of life in an ecosystem
C: Plastic in the ocean
D: Number of cars in a city

Đáp án: B

Câu hỏi 10: Which of these is a marine ecosystem?

A: River
B: Lake
C: Coral reef
D: Forest

Đáp án: C

Câu hỏi 11: Which gas is most important for photosynthesis?

A: Oxygen
B: Carbon dioxide
C: Nitrogen
D: Hydrogen

Đáp án: B

Câu hỏi 12: What role do plants play in an ecosystem?

A: Producer
B: Consumer
C: Decomposer
D: Predator

Đáp án: A

Câu hỏi 13: Which of these animals is a herbivore?

A: Lion
B: Elephant
C: Tiger
D: Eagle

Đáp án: B

Câu hỏi 14: What is a food chain?

A: A metal chain
B: A series of organisms where each eats the one before it
C: A shopping list
D: A mountain range

Đáp án: B

Câu hỏi 15: What is the top predator in a food chain called?

A: Decomposer
B: Apex predator
C: Producer
D: Scavenger

Đáp án: B

Câu hỏi 16: Which ecosystem is the coldest?

A: Desert
B: Rainforest
C: Tundra
D: Grassland

Đáp án: C

Câu hỏi 17: Which human activity harms ecosystems the most?

A: Recycling
B: Deforestation
C: Planting trees
D: Saving water

Đáp án: B

Câu hỏi 18: What is the main source of energy for ecosystems?

A: Wind
B: Water
C: The Sun
D: The Moon

Đáp án: C

Câu hỏi 19: Which of the following is a biotic factor in an ecosystem?

A: Soil
B: Temperature
C: Fish
D: Water

Đáp án: C

Câu hỏi 20: Which ecosystem has the highest biodiversity?

A: Desert
B: Ocean
C: Tropical rainforest
D: Arctic

Đáp án: C

Câu hỏi 21: What is a scavenger in an ecosystem?

A: A producer
B: An animal that eats dead organisms
C: A plant
D: A virus

Đáp án: B

Câu hỏi 22: Which of these is a grassland ecosystem?

A: Sahara Desert
B: Amazon Rainforest
C: African Savanna
D: Arctic Tundra

Đáp án: C

Câu hỏi 23: What is the main characteristic of a desert ecosystem?

A: Heavy rainfall
B: Very little rainfall
C: Thick forests
D: Many rivers

Đáp án: B

Câu hỏi 24: What do decomposers do in an ecosystem?

A: Produce energy
B: Break down dead organisms
C: Hunt other animals
D: Store water

Đáp án: B

Câu hỏi 25: What is a population in an ecosystem?

A: All the non-living things
B: A group of the same species living in one area
C: A food web
D: A type of climate

Đáp án: B

Câu hỏi 26: Which of these is an abiotic factor?

A: Bird
B: Tree
C: Water temperature
D: Fish

Đáp án: C

Câu hỏi 27: What is the role of algae in aquatic ecosystems?

A: Predator
B: Decomposer
C: Producer
D: Scavenger

Đáp án: C

Câu hỏi 28: Which of these is an example of mutualism?

A: Lion eating a zebra
B: Bees pollinating flowers
C: Shark eating fish
D: Eagle hunting a rabbit

Đáp án: B

Câu hỏi 29: Which ecosystem type covers most of the Earth’s surface?

A: Desert
B: Ocean
C: Forest
D: Grassland

Đáp án: B

Câu hỏi 30: Why are coral reefs important to ecosystems?

A: They produce oxygen
B: They provide habitat for marine species
C: They increase global warming
D: They create deserts

Đáp án: B

Câu hỏi 31: Which of these is an invasive species?

A: A native tree
B: A species introduced that harms local ecosystems
C: A decomposer
D: A herbivore

Đáp án: B

Câu hỏi 32: What is a food web?

A: A single food chain
B: Interconnected food chains in an ecosystem
C: A fishing net
D: A water filter

Đáp án: B

Câu hỏi 33: What is ecosystem balance?

A: Overpopulation of one species
B: Stable interaction between all living and non-living parts
C: Building houses in the forest
D: Removing all predators

Đáp án: B

Câu hỏi 34: Which of the following increases biodiversity?

A: Deforestation
B: Protecting habitats
C: Pollution
D: Overfishing

Đáp án: B

Câu hỏi 35: Which organism is an example of a predator?

A: Grasshopper
B: Cow
C: Lion
D: Rabbit

Đáp án: C

Câu hỏi 36: What is habitat destruction?

A: Protecting animal homes
B: Damaging or removing natural living spaces
C: Planting more trees
D: Building nature reserves

Đáp án: B

Câu hỏi 37: What is the role of the Sun in ecosystems?

A: No role
B: Main source of energy
C: Producing oxygen
D: Creating rainfall

Đáp án: B

Câu hỏi 38: What is a keystone species?

A: A species that has a big impact on its ecosystem
B: The largest animal
C: The oldest plant
D: A decomposer

Đáp án: A

Câu hỏi 39: Which of the following is NOT an ecosystem?

A: Forest
B: Desert
C: Aquarium
D: Shopping mall

Đáp án: D

Câu hỏi 40: What is the role of oxygen in ecosystems?

A: It is not needed
B: It helps animals and plants breathe
C: It destroys plants
D: It increases soil erosion

Đáp án: B

Câu hỏi 41: Which ecosystem is called the “lungs of the Earth”?

A: Desert
B: Rainforest
C: Tundra
D: Grassland

Đáp án: B

Câu hỏi 42: What is overgrazing?

A: Planting more grass
B: Animals eating too many plants in one area
C: Saving plants from animals
D: Protecting grasslands

Đáp án: B

Câu hỏi 43: Which animal is important for seed dispersal?

A: Snake
B: Elephant
C: Butterfly
D: Fish

Đáp án: B

Câu hỏi 44: What is the main source of food in most ecosystems?

A: Predators
B: Producers like plants
C: Decomposers
D: Carnivores

Đáp án: B

Câu hỏi 45: What is soil erosion?

A: Making soil stronger
B: Wearing away of soil by wind or water
C: Growing more soil
D: Building houses on soil

Đáp án: B

Câu hỏi 46: What happens when an ecosystem loses its top predator?

A: No change
B: Population of prey increases too much
C: Plants grow faster
D: Soil disappears

Đáp án: B

Câu hỏi 47: What is a drought?

A: Too much rain
B: A long period without rain
C: Heavy snowfall
D: Increased river flow

Đáp án: B

Câu hỏi 48: Which of the following is a carnivore?

A: Cow
B: Tiger
C: Sheep
D: Deer

Đáp án: B

Câu hỏi 49: Which of these is an endangered species?

A: House cat
B: Panda
C: Sparrow
D: Cockroach

Đáp án: B

Câu hỏi 50: What is a biome?

A: A large area with similar climate and ecosystems
B: A building
C: A small pond
D: A group of people

Đáp án: A

Câu hỏi 51: Which biome has the most species diversity?

A: Tundra
B: Rainforest
C: Desert
D: Grassland

Đáp án: B

Câu hỏi 52: What is an estuary?

A: Where a river meets the sea
B: A mountain peak
C: A desert area
D: A dry lake

Đáp án: A

Câu hỏi 53: Which of the following is a renewable resource?

A: Coal
B: Oil
C: Sunlight
D: Gas

Đáp án: C

Câu hỏi 54: What is a limiting factor in an ecosystem?

A: Something that increases population endlessly
B: Something that controls population size like food or water
C: A human invention
D: A type of fish

Đáp án: B

Câu hỏi 55: Which gas do animals release during respiration?

A: Oxygen
B: Carbon dioxide
C: Nitrogen
D: Helium

Đáp án: B

Câu hỏi 56: What is the frozen ecosystem called?

A: Rainforest
B: Tundra
C: Desert
D: Grassland

Đáp án: B

Câu hỏi 57: What does photosynthesis produce?

A: Carbon dioxide
B: Oxygen and sugar
C: Water
D: Oil

Đáp án: B

Câu hỏi 58: What is a primary consumer?

A: An animal that eats producers (plants)
B: A plant
C: A decomposer
D: A carnivore that eats other consumers

Đáp án: A

Câu hỏi 59: Which of the following is a detritivore?

A: Vulture
B: Earthworm
C: Deer
D: Rabbit

Đáp án: B

Câu hỏi 60: What is a habitat?

A: The natural home of an organism
B: A human house
C: A shopping mall
D: A bridge

Đáp án: A

Câu hỏi 61: What is climate?

A: Daily weather changes
B: The average weather over a long period
C: The temperature of a room
D: The shape of a building

Đáp án: B

Câu hỏi 62: Which organism is at the base of most food chains?

A: Tiger
B: Plant
C: Eagle
D: Snake

Đáp án: B

Câu hỏi 63: Which is a characteristic of the desert ecosystem?

A: Many trees
B: Low rainfall and hot temperatures
C: High humidity
D: Heavy snow

Đáp án: B

Câu hỏi 64: What is an omnivore?

A: Only eats plants
B: Eats both plants and animals
C: Only eats meat
D: Only drinks water

Đáp án: B

Câu hỏi 65: What is succession in ecology?

A: The sequence of changes in an ecosystem over time
B: Building a new city
C: Creating pollution
D: Stopping all plants from growing

Đáp án: A

Câu hỏi 66: What is conservation?

A: Protecting ecosystems and species
B: Destroying forests
C: Building roads
D: Polluting rivers

Đáp án: A

Câu hỏi 67: Which of these is a pollutant in water?

A: Oxygen
B: Plastic waste
C: Clean rain
D: Wind

Đáp án: B

Câu hỏi 68: What is a natural resource?

A: A man-made machine
B: Materials from nature used by humans
C: A mobile phone
D: Plastic bottle

Đáp án: B

Câu hỏi 69: Which animal plays a key role in forest ecosystems?

A: Shark
B: Deer
C: Whale
D: Camel

Đáp án: B

Câu hỏi 70: What is eutrophication?

A: Excess nutrients causing overgrowth of algae in water
B: Planting more trees
C: Cleaning rivers
D: Making fish stronger

Đáp án: A

Câu hỏi 71: Which part of the ecosystem produces most oxygen?

A: Coral reefs
B: Rainforests and oceans
C: Deserts
D: Mountains

Đáp án: B

Câu hỏi 72: What is one cause of deforestation?

A: Planting more forests
B: Logging for wood and farming
C: Protecting wildlife
D: Reducing population

Đáp án: B

Câu hỏi 73: What is a renewable energy source?

A: Coal
B: Oil
C: Wind power
D: Gasoline

Đáp án: C

Câu hỏi 74: Which of these is an adaptation of desert plants?

A: Large flat leaves
B: Storing water in thick stems
C: Requiring heavy rain
D: Growing in lakes

Đáp án: B

Câu hỏi 75: What is a symbiotic relationship?

A: A relationship between different species that benefits at least one
B: A type of machine
C: A shopping behavior
D: A fight between animals

Đáp án: A

Câu hỏi 76: What is a predator-prey relationship?

A: Both species help each other
B: One species eats the other
C: Both species live separately
D: Both species ignore each other

Đáp án: B

Câu hỏi 77: Which human action benefits ecosystems?

A: Reforestation
B: Deforestation
C: Overhunting
D: Pollution

Đáp án: A

Câu hỏi 78: What is an ecological footprint?

A: The area of a shoe
B: The impact of a person’s lifestyle on the environment
C: A hiking trail
D: A city’s map

Đáp án: B

Câu hỏi 79: What is the smallest unit of an ecosystem?

A: Population
B: Species
C: Individual organism
D: Biome

Đáp án: C

Câu hỏi 80: Which of these helps conserve water in ecosystems?

A: Water-saving technology
B: Deforestation
C: Leaving taps running
D: Overusing fountains

Đáp án: A

Câu hỏi 81: Which of these is an example of an aquatic ecosystem?

A: Desert
B: Lake
C: Grassland
D: Forest

Đáp án: B

Câu hỏi 82: What happens if biodiversity decreases?

A: Ecosystem becomes more stable
B: Ecosystem becomes weaker and less resilient
C: Ecosystem grows faster
D: Ecosystem has more food

Đáp án: B

Câu hỏi 83: Which organism converts sunlight into energy?

A: Human
B: Snake
C: Plant
D: Lion

Đáp án: C

Câu hỏi 84: Which is NOT a forest ecosystem?

A: Tropical rainforest
B: Taiga
C: Tundra
D: Temperate forest

Đáp án: C

Câu hỏi 85: Which of these animals is adapted to cold ecosystems?

A: Camel
B: Polar bear
C: Monkey
D: Parrot

Đáp án: B

Câu hỏi 86: What is soil made of?

A: Only sand
B: Minerals, organic matter, air, and water
C: Only water
D: Only plants

Đáp án: B

Câu hỏi 87: Why are wetlands important?

A: Filter water and provide habitat
B: Increase desert area
C: Remove forests
D: Stop rain

Đáp án: A

Câu hỏi 88: What is bioaccumulation?

A: Decreasing pollutants in food chains
B: Build-up of toxic substances in organisms
C: Growing plants faster
D: Cleaning rivers

Đáp án: B

Câu hỏi 89: Which is an example of a temperate forest?

A: Amazon
B: Black Forest in Germany
C: Sahara
D: Gobi Desert

Đáp án: B

Câu hỏi 90: What does pollution do to ecosystems?

A: Improves biodiversity
B: Harms living organisms and natural balance
C: Cleans rivers
D: Helps trees grow

Đáp án: B

Câu hỏi 91: What is a terrestrial ecosystem?

A: Water-based ecosystem
B: Land-based ecosystem
C: Space ecosystem
D: Underground machines

Đáp án: B

Câu hỏi 92: Which ecosystem is located at high altitude?

A: Grassland
B: Mountain ecosystem
C: Coral reef
D: River delta

Đáp án: B

Câu hỏi 93: What helps control pests naturally in ecosystems?

A: Predators
B: Building malls
C: Deforestation
D: Pollution

Đáp án: A

Câu hỏi 94: What is succession after a volcanic eruption called?

A: Primary succession
B: Secondary succession
C: Tertiary succession
D: Final succession

Đáp án: A

Câu hỏi 95: Which of these is NOT an abiotic factor?

A: Temperature
B: Light
C: Soil
D: Rabbit

Đáp án: D

Câu hỏi 96: Which is a man-made ecosystem?

A: Aquarium
B: Forest
C: River
D: Ocean

Đáp án: A

Câu hỏi 97: What is the main function of roots in plants?

A: Photosynthesis
B: Absorbing water and nutrients
C: Releasing carbon dioxide
D: Attracting animals

Đáp án: B

Câu hỏi 98: Which ecosystem has permafrost?

A: Tundra
B: Desert
C: Rainforest
D: Savanna

Đáp án: A

Câu hỏi 99: Which of these helps reduce soil erosion?

A: Planting trees
B: Cutting all trees
C: Building more roads
D: Leaving soil bare

Đáp án: A

Đã sao chép!!!