Humans Affect on Biodiversity

• What is biodiversity?

  The variety of different species on Earth
• How does the biodiversity of a rainforest compare to that of an average field?

  Rainforests have far higher biodiversity
• What happens to an ecosystem if one species goes extinct in a biodiverse environment?

  The ecosystem can remain stable due to other species
• Why is high biodiversity considered beneficial?

  It helps make ecosystems stable
• How many species of animals are known to act as pollinators?

  Around 200,000 species
• What is a significant source of new medical drugs?

  Living organisms
• Why is biodiversity essential for human survival?

  It provides potential medicines and ecosystem services
• What human activity reduces biodiversity?

  Damaging the environment
• How has the human population changed in the past 1000 years?

  Increased from 300 million to 7.7 billion
• What is one consequence of higher living standards on the environment?

  Increased pressure on natural resources
• What happens when natural resources are used faster than they can be replaced?

  We could run out of them
• What species was driven to extinction by poaching?

  Western black rhino
• What is a common process involved in obtaining resources that harms ecosystems?

  Deforestation
• What types of waste can harm ecosystems?

  Sewage, toxic chemicals, and landfill waste
• How can household waste affect the environment?

  It can pollute water, land, and air
• What is a consequence of industrial processes on the environment?

  Release of harmful chemicals into the air
• What is acid rain a result of?

  Release of chemicals like sulfur dioxide
• How does pollution affect organisms?

  It can harm them directly or indirectly
• What is the impact of greenhouse gases on global warming?

  They contribute to global warming
• What are the main human-induced threats to biodiversity?

  • Habitat destruction (deforestation)
  • Pollution (water, air, land)
  • Overexploitation (poaching, resource extraction)
  • Climate change (greenhouse gas emissions)
• What are the potential solutions to biodiversity loss?

  • Changes in human attitudes
  • Adoption of new technologies
  • Conservation efforts
  • Sustainable resource management