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Class 5 (1219 questions)
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by AKSHAY GURU VARADHARAJAN
· Class 5
An airplane departs from City A at 9:30 AM local time and arrives in City B at 2:30 PM local time on the same day. If City B is 3 hours ahead of City A, what was the actual duration of the flight?
Options:
(A) 5 hours
(B) 2 hours
(C) 8 hours
(D) 4 hours
Maths
Time
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by AKSHAY GURU VARADHARAJAN
· Class 5
A boy was born on February 29, 2012. Including the day he was born, how many birthdays will he have celebrated by March 1, 2025? (Note: A birthday is celebrated only on the exact date of birth).
(A) 13
(B) 4
(C) 3
(D) 14
Maths
Time
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by AKSHAY GURU VARADHARAJAN
· Class 5
In many developing countries, food security is threatened by "Post-Harvest Loss." Which of the following is the most likely cause of this?
(A) Farmers forgetting to pick the fruit from the trees.
(B) Poor storage facilities (like lack of refrigerators) and bad roads that cause food to rot before it reaches the market.
(C) People in the city eating too much food.
(D) Not having enough seeds to plant for the next year.
Green Warrior
Food Security and Agriculture
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by AKSHAY GURU VARADHARAJAN
· Class 5
Some modern farmers use drones and sensors to check exactly which parts of their field need water or medicine. This is called "Precision Agriculture." How does this help the environment?
(A) It saves water and reduces the use of harmful chemicals by only applying them where needed.
(B) It allows the farmer to stay at home and play video games.
(C) Drones scare away all the bees and butterflies.
(D) It makes the vegetables grow in perfect square shapes.
Green Warrior
Food Security and Agriculture
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by AKSHAY GURU VARADHARAJAN
· Class 5
"Monoculture" is when a giant farm grows only one single type of crop (like only one type of banana) over a huge area. Why is this a risk to global food security?
(A) People get bored of eating the same food every day.
(B) If a specific pest or disease hits that one crop, the entire food supply could be destroyed.
(C) It makes the harvest season too short for the workers.
(D) One type of plant produces too much oxygen at once.
Green Warrior
Food Security and Agriculture
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by AKSHAY GURU VARADHARAJAN
· Class 5
A farmer decides to plant beans this year in a field where he grew wheat last year. This practice is called "Crop Rotation." Why is this a "Green Warrior" move?
(A) It makes the field look more colorful for tourists.
(B) Different plants take different nutrients and some, like beans, actually put "Nitrogen" back into the soil.
(C) It confuses the birds so they don't eat the seeds.
(D) It allows the farmer to use more chemical fertilizers.
Green Warrior
Food Security and Agriculture
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by AKSHAY GURU VARADHARAJAN
· Class 5
Food security is not just about having enough food in the world. It is built on three pillars: Availability, Access, and Utilization. If a shop is full of food but the people nearby are too poor to buy it, which pillar is missing?
(A) Availability
(B) Access
(C) Utilization
(D) Production
Green Warrior
Food Security and Agriculture
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by AKSHAY GURU VARADHARAJAN
· Class 5
Fungi and Bacteria are the "Clean-up Crew" of the land. What would happen to the forest floor if all "Decomposers" were removed?
(A) The forest would stay clean and green forever.
(B) Dead leaves and animals would pile up, and nutrients would never return to the soil for new plants.
(C) Plants would grow twice as fast because there are no bacteria.
(D) The ground would turn into pure water.
Green Warrior
Life On Land
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by AKSHAY GURU VARADHARAJAN
· Class 5
A "Green Warrior" notices a new type of fast-growing weed in the local park that is killing all the native flowers. This is called an "Invasive Species." Why are these species so dangerous?
(A) They are usually poisonous to touch.
(B) They have no natural predators in the new area, so they grow out of control and steal all the light and water.
(C) They only grow during the night when people are sleeping.
(D) They turn the soil into plastic.
Green Warrior
Life On Land
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by AKSHAY GURU VARADHARAJAN
· Class 5
When a wide highway is built through the middle of a thick jungle, it causes "Habitat Fragmentation." How does this specifically harm large land animals?
(A) It gives them a smooth road to walk on.
(B) It divides their home into small "islands," making it hard for them to find enough food or a mate.
(C) It makes the forest look more organized and modern.
(D) Animals prefer to live near the noise of cars.
Green Warrior
Life On Land
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by AKSHAY GURU VARADHARAJAN
· Class 5
Why is "Deforestation" (cutting down trees) a leading cause of soil becoming infertile and blowing away?
(A) Trees provide shade that keeps the soil from melting.
(B) Tree roots act like "nets" that hold the soil together and prevent it from being washed away by rain.
(C) Trees produce a special glue that sticks the sand together.
(D) Cutting trees makes the wind blow in circles.
Green Warrior
Life On Land
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by AKSHAY GURU VARADHARAJAN
· Class 5
In an ecosystem, a "Keystone Species" is an organism that helps hold the entire system together. If the Tiger (a keystone species) disappears from a forest, what is the most likely result?
(A) The forest will become peaceful and safer for all animals.
(B) Herbivores (like deer) will overpopulate and eat all the plants, destroying the forest.
(C) Other predators like Lions will move in immediately to help.
(D) The trees will grow taller because no animals are climbing them.
Green Warrior
Life On Land
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by AKSHAY GURU VARADHARAJAN
· Class 5
In the 5 Rs of sustainability (Refuse, Reduce, Reuse, Repurpose, Recycle), why is "Refuse" considered the most effective step for the environment?
(A) Because it is the easiest word to remember.
(B) Because it prevents waste from ever being created by saying "no" to unnecessary items like plastic straws.
(C) Because refusing to do homework saves paper.
(D) Because it means you should never buy anything ever again.
Green Warrior
Responsible Consumption and Production
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by AKSHAY GURU VARADHARAJAN
· Class 5
If you see a "Fair Trade" or "Eco-Mark" logo on a product, what does it most likely tell you about its "Production"?
(A) The product is much cheaper than any other brand.
(B) The product was made using methods that are fair to workers and less harmful to the environment.
(C) The product was made by a famous celebrity.
(D) The product never expires and stays fresh forever.
Green Warrior
Responsible Consumption and Production
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by AKSHAY GURU VARADHARAJAN
· Class 5
Nearly one-third of all food produced in the world is wasted. Why is wasting a single apple also considered a waste of "hidden" resources?
(A) Because the apple could have been used to make a phone.
(B) Because of the "Virtual Water," land, and energy used to grow, transport, and pack that apple.
(C) Because the seeds inside the apple are made of gold.
(D) Because the apple will turn into a rock if not eaten.
Green Warrior
Responsible Consumption and Production
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by AKSHAY GURU VARADHARAJAN
· Class 5
Some companies design electronic gadgets to break or become slow after a few years so that customers are forced to buy a new one. This irresponsible practice is called:
(A) Rapid Production
(B) Planned Obsolescence
(C) Creative Engineering
(D) Product Upgrading
Green Warrior
Responsible Consumption and Production
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by AKSHAY GURU VARADHARAJAN
· Class 5
In a "Linear Economy," we take resources, make products, and throw them away. In a "Circular Economy," what is the primary goal?
(A) To make sure all products are shaped like circles.
(B) To design products so that materials can be reused, repaired, or recycled forever.
(C) To build more factories so we can produce things faster.
(D) To buy a new version of a gadget every year.
Green Warrior
Responsible Consumption and Production
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by AKSHAY GURU VARADHARAJAN
· Class 5
Many sustainable cities are building "Sponge Parks"—green spaces designed to soak up heavy rainwater. What specific urban problem does this solve?
(A) It provides free water for the city's fountains.
(B) It prevents "Urban Flooding" by allowing rainwater to seep into the ground instead of overflowing the drains.
(C) It helps in cleaning the windows of nearby buildings.
(D) It prevents the city from getting too dusty during the summer.
Green Warrior
Sustainable Cities and Communities
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by AKSHAY GURU VARADHARAJAN
· Class 5
A "Sustainable Community" must be "Inclusive." What does this mean in terms of city planning?
(A) Building only expensive houses so the city looks rich.
(B) Ensuring all public places like parks and buses are easily accessible to the elderly and people with disabilities.
(C) Making sure everyone in the city owns a smartphone.
(D) Building more shopping malls than schools.
Green Warrior
Sustainable Cities and Communities
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by AKSHAY GURU VARADHARAJAN
· Class 5
Sustainable cities often plan for "Green Belts"—areas of parks and trees surrounding or inside the city. What is a primary "Green Warrior" reason for this?
(A) To provide a place for people to take beautiful photos.
(B) To act as "lungs" for the city by filtering air pollution and providing oxygen.
(C) To make sure the city doesn't grow too large.
(D) To provide wood for building more houses.
Green Warrior
Affordable and Clean Energy
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