The world's oceans _________ a great deal of carbon dioxide from the atmosphere.

If more plants and animals continue to disappear, the _________ of the area will be severely affected.

Lobster, crab and shrimp are three types of marine _________ that are also popular seafood items.

Danger _________ below the lake's surface, hiding out of sight.

The use of chemicals in farming has _________ on wildlife as it harms animals' habitats and ecosystems.

Millions of tonnes of rubbish are buried in _________ each year.

The government needs to _________ the problem of pollution with better laws that help to protect the environment.

When the machine got too hot, workers poured water on it in order to get rid of the _________ heat as quickly as possible.

Some aquatic plants, like _________ , can change the colour of lakes by covering their surfaces in thin layers of green, brown or red.

The pollution from the cars and factories hung in a thick dark cloud of _________ over the city, making the air heavy and difficult to breathe.

Some pollution _________ are so small that they can only be seen under a microscope.

The factory was fined for _________ the emissions level set by environmental regulations, and releasing more than allowed.

Common salt is a _________ of two chemicals: sodium and chlorine.

Algae and seaweed are at the bottom of the marine _________ and are eaten by small fish which are, in turn, eaten by larger fish.

The dolphin, which breathes oxygen and gives birth to live young, is an example of a sea _________ .

There are a lot of farms around here because _________ is the main industry in this region.

Farmers grow _________ , such as corn and potatoes, which are later sold as food in supermarkets.

Water changes its _________ when it freezes, turning from a liquid into a solid.

Masks help to filter out _________ , such as dirt and metals, from the air we breathe.

Air pollution can worsen breathing conditions such as _________ , causing problems for people.

Rivers, lakes, springs and wells are all _________ .

When chemicals enter the soil or water, they _________ to plants and animals, causing them harm.

People who are constantly _________ to air pollution and breathe it in every day have a higher risk of respiratory diseases.

The contamination of the ocean with chemicals _________ on marine ecosystems by disrupting the food chain.

Even when the air looks clear, many small particles of pollutants, which we cannot _________ , are still present.

If we don't come up with solutions for global warming today, we will have more environmental issues _________ .

_________ , coming from cars and other forms of transport, create about 15% of global air pollution.

As more carbon dioxide enters the water in the form of pollution, several marine species struggle to survive because of _________ .

Wind turbines are a common type of _________ , using the wind to produce electricity without pollution.

Heavy metals, such as lead and mercury, are regarded as _________ because of their toxic effects on fish.

When factories release warm water into rivers and lakes, it can lead to _________ , harming local fish species.

_________ , such as manufacturing cars, bring economic benefits, but can also affect the environment.

_________ are important to nature as they help sea life form shells.

_________ substances, like fertilisers, are used in agriculture to protect plants from pests.

The factory released dangerous _________ into the air, harming local wildlife and residents.

The lake was filled with waste _________ from chemicals dumped by a factory, making it unsafe.