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On April 22, people all over the world always do something meaningful for the Earth that we all share. It’s Earth Day, a special day to learn about our planet and how to take care of it.

On Earth Day, some people listen to speeches about the environment. Others help clean up their offices or save water and electricity at home. Your parents may even decide to take a day off from driving their cars.

The idea for Earth Day came from a US senator(参议员), who was worried about pollution and the health of plants and animals.

Now, Earth Day has become a great celebration around the world. In 1990, 200 million people from 140 countries and areas took part in clean-ups, tree planting and other environmental events on Earth Day.

回答下面5个问题,每题答案不超过6个词。

1.When is Earth Day?

2.What speeches do some people listen to on Earth Day?

3.Who came up with the idea of Earth Day?

4.How many people celebrated the first Earth Day in cities in the USA in 1970?

5.What has Earth Day been used to educate people to do since 1970?

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