Contains the full lesson along with a supporting toolkit, including teachers’ notes.
It is ironic that, as human beings, we cause severe damage to the very atmosphere that supports our lives. We do this by polluting the atmosphere. One of the ways we pollute is by burning fossil fuels. Petrol is such a fuel, and when we drive cars we produce pollution. So, it is essential that all vehicles are well maintained so that harmful emissions are controlled. In this lesson we look at the general topic of atmospheric pollution and show how the work of the National Car Testing Service contributes to a cleaner and healthier atmosphere.
What is Pollution?
Pollution is the contamination and disruption of the biosphere with harmful materials and other agents as a result of human activity. Pollution is not just a threat to human lives, but also to biodiversity and the stability of natural communities.
What is the Biosphere?
The thin membrane or layer of living organisms covering the Earth which is known as the biosphere.
Living organisms are present in the atmosphere, in soil, sediments, and freshwater, saltwater, rock and also on and in the bodies of other living organisms.
Living organisms must cope with the abiotic and biotic factors of their environment. Biotic factors are the influences of other living organisms whereas abiotic factors are the influences of non-living components on an organisms struggle to survive and reproduce.
The relatively recent arrival of our human species has greatly altered the biotic and abiotic factors for much of life on Earth.