It’s such a ............ of clean water when you forget to turn the tap off.

Many high school students volunteered to ............ the polluted river.

In order to reduce our ............, we should cycle or take a bus to school instead of using motorbikes.

It takes hundreds of years for one plastic bottle to ............ in the ground.

Several traditional customs that can do damage to the environment should be changed for a more ............ future.

Ms. Brown often uses leftovers to make her own ............ .

The water has become undrinkable because it has been ............ with lead.

They ............ extensive research on the environmental effects of using fake Christmas trees.

Many celebrities adopt a green lifestyle, ............ helps the environment a lot.

OPPOSITE: SINGLE-USE products provide great convenience, but they also harm the environment.

CLOSEST: SINGLE-USE products provide great convenience, but they also harm the environment.

CLOSEST: Instead of GETTING RID OF fruit peels, we use them to make simple compost.

The project should aim to ............ students’ awareness of environmental issues.

Each class is required to ............ a presentation about their project.

Festivals come with many traditions that bring happiness and joy. However, some of these ............ may not be environmentally friendly, and may need to be changed for a sustainable future.

In countries such as China, India, and Japan, releasing balloons or sky lanterns provides a spectacular ............

The frames of the lanterns can harm wild animals, and many animals ............ the balloons for food.

In Australia, the US, and many other countries, there are fascinating firework displays that people won't want to ............

Fireworks actually ............ a lot of harmful chemicals into the air. Like sky lanterns, they can also cause fires.

CLOSEST: Now I always RINSE OUT containers before recycling them.

The farmers ............ natural methods for pest control, avoiding using chemicals.

Students are always reminded to ............ the lights when leaving the room to save energy.

We used to conserve water by using a rain barrel as a ............ for our garden.

Kevin has a habit of ............ glass jars for storing pantry staples.

Using solar panels saves money in the long ............ .

Customers nowadays prefer products with minimal............ to reduce waste.

............ boxes are always broken down and put in the recycling bin.

People who lack environmental awareness often think that using organic products is a............ of money.

The city implemented a new recycling program, ............ has helped increase the recycling rate.

They carpool to work every day, ............ helps decrease their carbon footprints.

CLOSEST: To ensure proper disposal, you should SORT your waste into recyclable materials, compost, and trash.

CLOSEST: Certain industrial processes RELEASE harmful gases into the environment.

We encourage participants to bring their single-use but ............ items for making new products.

Participants can bring their tools such as knives and scissors, but they must be kept in a container for .............

Earth Hour is a(n) ............ organised by the World Wildlife Fund (WWF)

The initiative was proposed in 2004 in Australia, but the idea of a ............ event was developed in 2006 under the name The Big Flick.

............ the success of these events, the organisers decided to hold Earth Hour annually around the world since then.

A study in 2014 claimed that the event reduced electricity ............ by an average of 4%.

Although one hour can't change the world, it encourages governments and people to set long-term goals for ............ development around the world.

OPPOSITE: keep your windows or curtains open during the day to let NATURAL sunlight in.