Test Your Environmental Knowledge!

1. Using disposable paper cups is much better than washing mugs after each use.

True

False

Paper cups are a big waste - buy a mug, and keep reusing it!

Explanation

Paper cups are a big waste - buy a mug, and keep reusing it!

2. How much percent of the world's water is available for human use?

Less than 1%

3%

5%

10%

Less than 1% of the world's water is available for human use. This is due to the majority of water being in the form of saltwater in oceans and seas, which is not suitable for drinking or irrigation. Only a small fraction of freshwater is easily accessible in lakes, rivers, and underground sources. With the growing population and increasing water demands, it is crucial to conserve and manage this limited resource effectively.

Explanation

Less than 1% of the world's water is available for human use. This is due to the majority of water being in the form of saltwater in oceans and seas, which is not suitable for drinking or irrigation. Only a small fraction of freshwater is easily accessible in lakes, rivers, and underground sources. With the growing population and increasing water demands, it is crucial to conserve and manage this limited resource effectively.

3. Which of the following countries has the fastest growing pollution problem?

USA

China

India

UK

Russia

China is the correct answer because it has been experiencing rapid industrialization and urbanization, leading to increased pollution levels. The country has a high population density and relies heavily on coal for energy production, which contributes to air pollution. Additionally, China is the world's largest emitter of greenhouse gases and faces challenges in managing waste and water pollution. Therefore, China has the fastest growing pollution problem among the listed countries.

Explanation

China is the correct answer because it has been experiencing rapid industrialization and urbanization, leading to increased pollution levels. The country has a high population density and relies heavily on coal for energy production, which contributes to air pollution. Additionally, China is the world's largest emitter of greenhouse gases and faces challenges in managing waste and water pollution. Therefore, China has the fastest growing pollution problem among the listed countries.

4. One bus can carry as many people as how many cars?

3

10

40

1000

One bus can carry as many people as 40 cars because buses have a larger seating capacity compared to cars. Buses are designed to transport a large number of passengers at once, typically seating around 40 to 60 people depending on the size of the bus. On the other hand, cars usually have a seating capacity of 4 to 5 people. Therefore, the number of people that can be transported in one bus is equivalent to the number of people that can be transported in 40 cars.

Explanation

One bus can carry as many people as 40 cars because buses have a larger seating capacity compared to cars. Buses are designed to transport a large number of passengers at once, typically seating around 40 to 60 people depending on the size of the bus. On the other hand, cars usually have a seating capacity of 4 to 5 people. Therefore, the number of people that can be transported in one bus is equivalent to the number of people that can be transported in 40 cars.

5. Which of the following facts is true about trees?

Trees renew our air supply by absorbing carbon dioxide and producing oxygen.

Shade trees can make buildings up to 20 degrees cooler in the summer.

Tree roots stabilize soil and prevent erosion.

Trees are bad for the environment because they use up too much water.

Trees renew our air supply by absorbing carbon dioxide and producing oxygen. This is true because trees undergo the process of photosynthesis, where they take in carbon dioxide and release oxygen. Shade trees can make buildings up to 20 degrees cooler in the summer. This is true because trees provide shade and reduce the amount of direct sunlight and heat that reaches buildings. Tree roots stabilize soil and prevent erosion. This is true because tree roots help anchor the soil, preventing it from being washed away by water or wind.

Explanation

Trees renew our air supply by absorbing carbon dioxide and producing oxygen. This is true because trees undergo the process of photosynthesis, where they take in carbon dioxide and release oxygen. Shade trees can make buildings up to 20 degrees cooler in the summer. This is true because trees provide shade and reduce the amount of direct sunlight and heat that reaches buildings. Tree roots stabilize soil and prevent erosion. This is true because tree roots help anchor the soil, preventing it from being washed away by water or wind.

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6. Recycled plastic bottles can be made into:

Clothing

Carpets

Detergent Bottles

Lumber (for outdoor decking)

Recycled plastic bottles can be transformed into various products such as clothing, carpets, detergent bottles, and lumber for outdoor decking. By recycling plastic bottles, they can be given a new life and repurposed into different items. The plastic can be melted down and spun into fibers to create clothing or used to make carpets. It can also be processed to produce new detergent bottles or be transformed into lumber for outdoor decking, providing a sustainable alternative to traditional materials.

Explanation

Recycled plastic bottles can be transformed into various products such as clothing, carpets, detergent bottles, and lumber for outdoor decking. By recycling plastic bottles, they can be given a new life and repurposed into different items. The plastic can be melted down and spun into fibers to create clothing or used to make carpets. It can also be processed to produce new detergent bottles or be transformed into lumber for outdoor decking, providing a sustainable alternative to traditional materials.

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