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Lets Conserve - Its Earth Day

Across
What is filtration of water?
What is the most sustainable and eco-friendly renewable energy source?
The name of one disease caused by drinking of contaminated water.
Oceans contains which type of water?
Method of removing dust and other particles from water using filters is called what?
What holiday followed Earth Day in 1972?
In Panama, 100 endangered species of what were planted for Earth Day?
What region on Earth produces 20% of the planet's oxygen?
Cutting of trees in large numbers is called what?
Down
Which of the following greenhouse gases is the biggest contributor to global warming?
Farmers should use ___________ for irrigation to prevent wastage of water.
What is the largest active volcano in the world?
What is the theme of Earth Day 2023?
The name of a source of fresh water?
Used to kill germs present in water?
Industrialization is also one of the cause of _____________ of water.
What is the biggest country by land area in the world?
A single tree produces enough air to supply in its lifetime for how many people for a year?
Earth is also called __________ planet.
Most of Earth's breathable air comes from where?