Correct Answer - Option 4 : 1, 2, 3 and 4
The correct answer is 1, 2, 3 and 4.
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Biodiversity:
- Biodiversity is the variety of all living organisms on Earth.
- This includes terrestrial, marine and other aquatic ecosystems and the ecological complexes which they are part of.
- This diversity can occur between species, within species and ecosystem level.
- Biodiversity is important to our existence and is valuable in its own right.
- It forms the foundation for an array of ecosystem services which are critical to human well-being.
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Why is biodiversity important?
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Biodiversity helps to boost ecosystem productivity, each species no matter what size, have their own important role to play.
- Healthy biodiversity provides a number of natural services to the human population including:
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Ecosystem services:
- nutrient storage and recycling
- pollution breakdown and absorption
- soil formation and protection
- protection of water resources
- Pollination of crops
- Prevention of soil erosion
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Biological resources:
- Food
- Medicinal resources and pharmaceutical drugs
- Future resources
- Ornamental plants
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Social benefits:
- Research, education and monitoring
- Recreation and tourism
- Cultural values