Biodiversity is a measure of how many different species live in an ecosystem. Human activities like changing land use, deforestation and peat bog destruction reduce this.
What is the range of plants and animals in an ecosystem known as?
What is meant by the term extinction?
When numbers of an organism decrease but the species recovers
When a species is wiped out forever
When a species decreases in numbers
What does deforestation mean?
Planting new tress
Cutting trees down
Deforestation leads to?
Reduced number of habitats and decreased biodiversity
Increased number of habitats and decreased biodiversity
Increased number of habitats and increased biodiversity
Why is the human population growing each year?
More births and more deaths
Less births and more deaths
More births than deaths
Eutrophication is caused by which of these?
What happens to the oxygen levels during eutrophication?
Stay the same
Which of these is a greenhouse gas?
Deforestation followed by burning of the trees will release which gas into the atmosphere?
Which of these ecosystems would have the highest level of biodiversity?