རང་བྱུང་ཁམས།Nature and landscapesKids, ages 11 to 14English

Ecosystems and food chains

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Questions

1Multiple choice · 20 s · 10 ptsNot played yet
What is the original source of energy for almost all food chains on Earth?
- AThe soil
- BWater
- CThe Sun
- DThe Moon
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2Multiple choice · 20 s · 10 ptsNot played yet
Which of these organisms is a producer?
- AGrass
- BRabbit
- CFox
- DMushroom
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3Multiple choice · 20 s · 10 ptsNot played yet
In a food chain, what do the arrows show?
- AWhich animal is the largest
- BEnergy passing from food to the eater
- CWhere each animal lives
- DWhich animal lives the longest
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4Multiple choice · 20 s · 10 ptsNot played yet
In the food chain grass → grasshopper → frog → snake, which organism is the primary consumer?
- AGrass
- BFrog
- CSnake
- DGrasshopper
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5Multiple choice · 20 s · 10 ptsNot played yet
A brown bear eats berries, roots, fish and small animals. What type of consumer is it?
- AHerbivore
- BCarnivore
- COmnivore
- DProducer
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6True or false · 20 s · 10 ptsNot played yet
Herbivores are usually found at the top of food chains.
- ✓True · བདེན།
- ✕False · རྫུན།
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7Multiple choice · 20 s · 10 ptsNot played yet
What is an animal at the top of a food chain, with no natural predators as an adult, called?
- AProducer
- BPrimary consumer
- CDecomposer
- DApex predator
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8Multiple choice · 20 s · 10 ptsNot played yet
Why are there usually fewer living things at the top of a food chain than at the bottom?
- ATop animals are always the smallest
- BEnergy is lost at each step of the chain
- CTop animals do not need food
- DProducers eat the top animals
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9Multiple choice · 20 s · 10 ptsNot played yet
The fungi on the rotting log in the picture break down dead plants and animals. What are organisms that do this called?
- ADecomposers
- BProducers
- CPredators
- DHerbivores
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10True or false · 20 s · 10 ptsNot played yet
Removing one species from a food web never affects any other species.
- ✓True · བདེན།
- ✕False · རྫུན།
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11Multiple choice · 20 s · 10 ptsNot played yet
The biome in the picture is warm and wet all year and has more kinds of plants and animals than any other on land. What is it?
- ATropical rainforest
- BTundra
- CDesert
- DTemperate grassland
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12Multiple choice · 20 s · 10 ptsNot played yet
The biome in the picture receives less than 250 mm of rain a year. What is it called?
- ATropical rainforest
- BWetland
- CDesert
- DTemperate forest
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13Multiple choice · 20 s · 10 ptsNot played yet
This cold, treeless biome has ground that stays frozen all year just below the surface. What is the biome called?
- ASavanna
- BTundra
- CTaiga
- DRainforest
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14Multiple choice · 20 s · 10 ptsNot played yet
Which biome is mainly covered in grasses with few trees, and is home to large grazing animals like zebras or bison?
- ATundra
- BTropical rainforest
- CCoral reef
- DGrassland
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15Multiple choice · 20 s · 10 ptsNot played yet
The corals that build reefs like the one in the picture are living things. What are they?
- AAnimals
- BPlants
- CFungi
- DBacteria
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16True or false · 20 s · 10 ptsNot played yet
Coral reefs cover only a tiny part of the ocean floor but are home to a huge variety of sea life.
- ✓True · བདེན།
- ✕False · རྫུན།
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17Multiple choice · 20 s · 10 ptsNot played yet
Cutting down forests, as in the picture, can cause which of these problems?
- AThe air gets more oxygen
- BThe soil becomes more fertile
- CRainfall always increases
- DAnimals lose their habitats
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18Multiple choice · 20 s · 10 ptsNot played yet
What does biodiversity mean?
- AThe number of trees in a forest
- BThe variety of living things in an area
- CThe study of rocks and soil
- DThe weather of a place over time
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19Multiple choice · 20 s · 10 ptsNot played yet
What does it mean when a species is endangered?
- AIt is dangerous to humans
- BIt has many young each year
- CIt is at risk of becoming extinct
- DIt lives only in zoos
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20True or false · 20 s · 10 ptsNot played yet
National parks are areas protected by law to conserve nature, wildlife and landscapes.
- ✓True · བདེན།
- ✕False · རྫུན།
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