Fill in the gaps. There are thousands of endangered plant and animal ___ in the world. Global ___ is caused by a phenomenon known as the greenhouse effect. The three forms of ___ fuel are oil, natural gas and coal. Greenhouse ___ trap heat in the atmosphere, which makes the Earth warmer. The Antarctic ___ hole was discovered in 1985.Each molecule of ___ dioxide consists of one atom of carbon and two atoms of oxygen. Switching to ___ -saving light bulbs is the easiest way to start saving energy. When we burn fossil fuels, this releases all sorts of gases into the air ___ causing air such as smog. Climate ___ is one of the biggest threats we face today. We cannot see or feel ____ radiation, but our skin responds to it by turning darker.
species, warming, fossil, gases, ozone, carbon, energy, pollution, change, ultraviolet