What are the three R's of waste reduction?
Reduce, Reuse, and Recycle
What gas do plants give off that humans and animals need to breathe?
Oxygen
Which type of energy comes from the sun?
Solar energy (or sunlight)
About how many percentage of the Earth's surface is covered by water? (20points)
About 70% (or 71%)
What word means protecting and caring for the environment? (20points)
Conservation
True or False: Most of the Earth's breathable air comes from forests.
False. More than 70% of Earth's oxygen is produced by the ocean
Which is the largest ocean on Earth?
The Pacific Ocean
Which type of energy is renewable (it never runs out)?
Solar, wind, water
Using public transport, walking, or cycling to school helps reduce what type of pollution?
Air pollution
True or False: The most common gas in the Earth's atmosphere is oxygen. (20points)
False. The most common gas is nitrogen (about 78%).
True or False: Energy from coal is not a renewable energy source.
True. Coal is a non-renewable energy source that takes millions of years to form.
Which region is nicknamed the "Lungs of the World" because it produces 20% of the Earth's oxygen?
The Amazon rainforest
What is the natural home of an animal called?
Habitat
Why should we turn off lights when not in use?
To save energy
What protects us from the sun’s harmful rays? (20points)
Ozone layer
True or False: Plastic can take up to 1,000 years to decompose in landfills.
True. This emphasizes the need for recycling and reducing plastic use.
