Maintaining Ecosystem And Biodiversity

Question 1

What is biodiversity again?

Answer 1

Biodiversity = The variety of different species of organisms on Earth or in an ecosystem.

More biodiversity = More stable ecosystems 🌿

Question 2

Why is biodiversity under threat?

Answer 2

Caused by human actions

Question 3

Caused by human actions like:

Answer 3

• Deforestation 🌲❌
• Pollution (air, land, water) ☠️
• Global warming 🌡
• Overfishing and hunting 🎣
• Waste and land use 🏭

This leads to:
• Habitat destruction
• Species extinction
• Unstable ecosystems

Question 4

Why do we need to maintain biodiversity?

Answer 4

1. To protect the environment
   
   2. To ensure resources last (e.g. food, medicines)
   3. To keep ecosystems stable
   4. To help species survive environmental changes

Question 5

How do we maintain biodiversity?

Answer 5

1️⃣ Breeding Programmes
2️⃣ Protecting and Regenerating Rare Habitats
3️⃣ Reintroducing hedgerows and field margins
4️⃣ Reducing deforestation and carbon emissions
5️⃣ Recycling more waste
6️⃣ Educating people

Question 6

1️⃣ Breeding Programmes

Answer 6

Help prevent extinction

Endangered animals are carefully bred to increase population
✅ Example: Pandas or tigers

Question 7

2️⃣ Protecting and Regenerating Rare Habitats

Answer 7

• National parks, nature reserves, or marine reserves
• Help protect rare plants and animals

Question 8

3️⃣ Reintroducing hedgerows and field margins

Answer 8

• In farmland, these provide habitats for wild species
✅ Helps insects, birds, and small mammals survive near crop fields

Question 9

4️⃣ Reducing deforestation and carbon emissions

Answer 9

• Laws or rules to cut down fewer trees
• Encourage planting new trees
• Reduce burning of fossil fuels
✅ Less CO₂ = less global warming

Question 10

5️⃣ Recycling more waste

Answer 10

• Less waste = less pollution = less landfill
• Means fewer habitats are destroyed for landfill sites

Question 11

Why is high biodiversity important?

Answer 11

It helps keep ecosystems stable and supports survival of species.

Question 12

Name 3 human activities that reduce biodiversity.

Answer 12

Deforestation, pollution, global warming.

Question 13

What is the aim of a breeding programme?

Answer 13

To stop endangered species from becoming extinct

Question 14

How do nature reserves help biodiversity?

Answer 14

They protect habitats and the species that live there

Question 15

What are field margins and why are they useful?

Answer 15

Unplanted edges around fields that support wild species