What does endangered mean?

The burning of fuels in houses, factories, and vehicles adds smoke and poisonous substances to the environment, causing ____.

Increasing levels of carbon dioxide in the air is believed to cause ___.

___ is waste that does not rot or decompose.

Waste from our homes and factories are dumped into rivers, lakes, and seas, causing ____.

The Government should do things to reduce _________ emissions

To __________ is to make the air, water, or soil dirty or unclean

____________ is the removal or cutting down of all trees in an area for urban use

To ________ is to keep and protect something from damage, change or waste

Choose the threats to the environment:

What does "environmental impact" mean?

As towns grow, they tend to destroy the surrounding __________ areas.

Farmers contribute to environmental damage by spraying _________ with __________, which stay in the soil for years.

The gradual rise in the Earth’s temperature is known as ____________.

The _____ that are produced by factories and cars are allowing more ______ from the sun to reach earth.

As the Earth gets hotter, the Arctic and Antarctic __________ will slowly melt and the level of the oceans will rise.

There will be _________, too. Some areas will become wetter while others will become much drier.

Thousands of acres of forest are being cut down every year and the ________ of many animals are being destroyed.

Scientists have found holes in the ________, particularly over Antarctica.