Interdependence in Nature
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Biotic and Abiotic components
SubtopicBiotic and Abiotic components under Interdependence in Nature for Grade 5 ICSE.
Preview questions (no answers)
- 1.
Which component of the environment includes air, water, soil, and sunlight?
A.Biotic
B.Abiotic
C.Living
D.Organic
- 2.
Which of these is an example of a biotic-biotic interaction?
A.A fish swimming in water
B.A bird eating a worm
C.A plant absorbing sunlight
D.A rock rolling down a hill
- 3.
Which of these is a way that abiotic factors affect biotic factors?
A.A lion hunting a zebra
B.Rain helping a plant grow
C.A bee visiting a flower
D.A mushroom growing on a log
- 4.
In a food chain, which organism always occupies the first level?
A.Herbivore
B.Carnivore
C.Green plant
D.Decomposer
- 5.
Which of these correctly matches a biotic component with its role?
A.Green plants - Decomposer
B.Tiger - Primary consumer
C.Bacteria - Producer
D.Fungi - Decomposer
- 6.
If all the lions in a jungle were removed, what would likely happen to the population of deer (their prey)?
A.The deer population would decrease
B.The deer population would increase initially
C.The deer would start eating other animals
D.The deer would become producers
- 7.
What is the main role of the Sun in a food chain?
A.To provide heat for decomposers
B.To provide light energy for producers
C.To help carnivores see their prey
D.To evaporate water from the soil
- 8.
Which of the following is an example of an abiotic factor being recycled by biotic activity?
A.Water flowing down a river.
B.Nitrogen being fixed by bacteria in soil and then returned via decomposition.
C.Sunlight being reflected by the moon.
D.Rocks falling from a mountain.
- 9.
If the temperature of a region (abiotic) drops below freezing, what biotic response is commonly seen in deciduous trees?
A.They grow more leaves to stay warm.
B.They shed their leaves to conserve water and energy.
C.They start producing fruit immediately.
D.They move to a warmer location.
- 10.
How do biotic 'Earthworms' improve the abiotic quality of 'Soil'?
A.By eating the rocks and turning them into sand.
B.By creating tunnels that allow air and water to reach plant roots.
C.By removing all the water from the soil.
D.By making the soil as hard as possible.
Download the worksheet for Interdependence in Nature - Biotic and Abiotic components to practice offline. It includes additional chapter-level practice questions.
Food Chain and Food Web
SubtopicFood Chain and Food Web under Interdependence in Nature for Grade 5 ICSE.
Preview questions (no answers)
- 1.
Which of these is a correct definition of a predator?
A.An animal that makes its own food
B.An animal that is hunted by others
C.An animal that hunts and kills other animals for food
D.An organism that breaks down dead leaves
- 2.
Which organism would occupy the second level in a food chain?
A.A tree
B.A giraffe
C.A tiger
D.A mushroom
- 3.
Which of the following is a primary consumer in a garden?
A.Butterfly
B.Spider
C.Frog
D.Lizard
- 4.
Where do green plants get the energy they need to begin a food chain?
A.From the soil
B.From sunlight
C.From water
D.From animals
- 5.
How do animals help plants through the process of 'respiration'?
A.By releasing oxygen for plants to use
B.By releasing water for plants to drink
C.By releasing carbon dioxide which plants need for photosynthesis
D.By breaking down dead plants into soil
- 6.
Which of the following organisms is an omnivore?
A.Lion
B.Deer
C.Bear
D.Giraffe
- 7.
What would be the effect of an increase in the population of owls in a field where they eat mice?
A.The mouse population will increase
B.The mouse population will decrease
C.The grass population will decrease
D.The amount of sunlight will decrease
- 8.
What would be the most likely effect of a long-term drought on a food web?
A.Only the plants would be affected.
B.The herbivores would increase in number.
C.The entire food web would be weakened as the producers die off.
D.The carnivores would start eating rocks for minerals.
- 9.
Which of these organisms converts light energy into chemical energy?
A.A cow
B.A human
C.A mango tree
D.A mushroom
- 10.
If a new predator is introduced into an ecosystem that has no natural enemies, what will likely happen to the existing food web?
A.The ecosystem will become more balanced.
B.The existing prey populations will likely decrease significantly.
C.The producers will stop growing.
D.The new predator will eventually become a producer.
Download the worksheet for Interdependence in Nature - Food Chain and Food Web to practice offline. It includes additional chapter-level practice questions.
Balance in Nature
SubtopicBalance in Nature under Interdependence in Nature for Grade 5 ICSE.
Preview questions (no answers)
- 1.
Which of these animals would be considered a primary consumer?
A.Hawk
B.Snake
C.Grasshopper
D.Owl
- 2.
If there is too much carbon dioxide in the air due to pollution, what can help reduce it?
A.Building more factories
B.Increasing the number of vehicles
C.Planting more trees
D.Cutting down forests
- 3.
Which part of the plant is mainly responsible for making food?
A.Root
B.Stem
C.Leaf
D.Flower
- 4.
Balance in nature is maintained when there is a proper ratio between:
A.Plants and animals
B.Buildings and roads
C.Cars and buses
D.Plastic and paper
- 5.
Which of these best explains why 'Interdependence' is necessary in nature?
A.So that animals don't have to work hard.
B.To ensure that resources like energy and nutrients are used and reused efficiently.
C.So that plants can grow without sunlight.
D.To make sure humans are the only ones left on Earth.
- 6.
Why is the recycling of paper and plastic important for the balance of nature?
A.It helps reduce the need for cutting trees and reduces pollution.
B.It makes the soil turn into plastic.
C.It creates more carbon dioxide for the plants.
D.It makes animals live longer.
- 7.
What is the relationship called when one organism (like a tick) lives on another organism (like a dog) and harms it?
A.Mutualism
B.Symbiosis
C.Parasitism
D.Decomposition
- 8.
Study the following flowchart. If a new species of bird is introduced that eats only spiders, what is the most likely immediate effect on the balance of this specific chain?
A.The population of aphids will decrease.
B.The population of aphids will increase because there are fewer spiders to eat them.
C.The rose bush will produce more flowers to attract the birds.
D.The ladybugs will start eating the birds.
- 9.
If all the 'microbes' (microscopic organisms) in the soil were suddenly destroyed, which process would stop first, leading to a total failure of the ecosystem?
A.The flow of sunlight to the plants.
B.The release of oxygen by animals during respiration.
C.The breakdown of organic matter into inorganic nutrients.
D.The evaporation of water from the surface of lakes.
- 10.
Why is the presence of scavengers like vultures essential for maintaining the health (balance) of a tropical ecosystem?
A.They hunt the old and sick animals, keeping the prey population strong.
B.They compete with decomposers for food, preventing the soil from getting too many nutrients.
C.By quickly consuming carcasses, they prevent the spread of diseases and pathogens to other animals.
D.They are the only animals that can convert solar energy into chemical energy at night.
Download the worksheet for Interdependence in Nature - Balance in Nature to practice offline. It includes additional chapter-level practice questions.
Impact of human activities on the environment
SubtopicImpact of human activities on the environment under Interdependence in Nature for Grade 5 ICSE.
Preview questions (no answers)
- 1.
Which of the following describes the '3 Rs' of environment conservation?
A.Run, Race, Rest
B.Reduce, Reuse, Recycle
C.Read, Record, Repeat
D.Rain, River, Rock
- 2.
What is the benefit of keeping our surroundings clean?
A.It increases the mosquito population
B.It prevents the spread of diseases
C.It causes more pollution
D.It uses up all our energy
- 3.
Which of these human activities contributes to the depletion of the ozone layer?
A.Walking in the park
B.Using certain aerosol sprays and refrigerants
C.Planting saplings
D.Using a bucket to take a bath
- 4.
Using a bicycle for short distances instead of a car helps to reduce:
A.Water pollution
B.Air pollution
C.Soil pollution
D.Plastic waste
- 5.
How does 'Global Warming' affect the sea levels?
A.It causes sea levels to decrease
B.It has no effect on sea levels
C.It causes sea levels to rise due to melting glaciers
D.It turns sea water into ice
- 6.
Which of the following is a way to conserve water in our daily lives?
A.Leaving the tap running while brushing teeth
B.Using a hosepipe to wash cars every day
C.Fixing leaking taps and pipes immediately
D.Taking long showers twice a day
- 7.
What is the impact of building 'Highways' through dense forests on animal populations?
A.It helps animals travel faster between cities
B.It fragments habitats and increases the risk of road accidents for wildlife
C.It provides animals with more food options
D.It makes the forest look more modern
- 8.
Building a large dam for hydroelectric power changes the 'Sediment Flow' of a river. Why does this often cause a river delta (the land at the mouth of the river) to shrink over time?
A.The dam makes the water flow too fast, washing the delta away
B.The dam traps the silt and soil that would naturally flow downstream to rebuild and nourish the delta land
C.The dam turns all the salt water in the delta into fresh water
D.The fish can no longer swim to the delta to lay eggs
- 9.
Lichens (an interdependence of fungi and algae) are 'Bio-indicators.' They are very sensitive to sulfur dioxide () in the air. If a city's trees are completely bare of lichens, what is the most likely conclusion about the human impact there?
A.The city has too many birds that eat lichens
B.The air is very clean, and lichens only grow in dirty air
C.The air is heavily polluted with from burning fossil fuels, which kills the lichen
D.The trees are a type that lichens do not like
- 10.
Invasive species are often 'Generalists,' while many native species are 'Specialists.' Why does human-driven habitat destruction favor the generalist invasive species?
A.Generalists are stronger and can fight better
B.Generalists can eat a wide variety of foods and live in many conditions, allowing them to survive when the environment changes
C.Specialists are usually much smaller and get stepped on
D.Invasive species have no DNA, so they can't get sick
Download the worksheet for Interdependence in Nature - Impact of human activities on the environment to practice offline. It includes additional chapter-level practice questions.