B7- Biodiversity And Waste Management Flashcards
What is biodiversity?
The variety of different species of organisms on Earth, or within an ecosystem.
Why is high biodiversity important?
It stabilizes ecosystems as different species depend on each other for shelter and food.
What role do different species play in their environment?
They help maintain the right physical environment for each other, such as soil acidity.
What is necessary for the human species to survive?
A good level of biodiversity must be maintained.
What human actions are reducing biodiversity?
Deforestation and global warming.
True or False: The world’s population is currently decreasing.
False.
What has contributed to the rapid increase in the world’s population?
Modern medicine and farming methods.
What is a consequence of the rising human population?
Increased pressure on the environment.
What are some demands of the increasing population?
Higher standards of living and luxuries such as cars and computers.
Fill in the blank: Many raw materials are being used up quicker than they are being _______.
replaced.
What is a major consequence of producing more goods?
Increased waste, including waste chemicals.
How can pollution affect biodiversity?
It kills plants and animals, reducing biodiversity.
What are some sources of water pollution?
Sewage and toxic chemicals from industry.
What chemicals can be washed into water from land?
Fertilizers, pesticides, and herbicides.
What is one example of air pollution?
Sulfur dioxide can cause acid rain.
