Biodiversity and Conservation

The Earth summit held in Rio de Janeiro in 1992 was called :

1. to assess threat posed to native species by invasive weed species
2. for immediate steps to discontinue use of CFCs that were damaging the ozone layer
3. to reduce CO2 emissions and global warming
4. for conservation of biodiversity and sustainable utilization of its benefits

Which of the following is the most important cause for animals and plants being driven to extinction?

1. Economic exploitation
2. Alien species invasion
3. Habitat loss and fragmentation
4. Drought and floods

Which one of the following is not a method of in situ conservation of biodiversity?

1. Botanical Garden
2. Sacred Grove
3. Biosphere Reserve
4. Wildlife Sanctuary

All of the following are included in ‘ex-situ conservation’ except

1. wildlife safari parks
2. sacred groves
3. botanical gardens
4. seed banks

Which one of the following is related to Ex-situ conservation of threatened animals and plants ?

1. Biodiversity hot spots
2. Himalayan region
3. Amazon rainforest
4. Wildlife Safari Parks

Alexander von Humboldt described for the first time :

1. Laws of limiting factor
2. Population Growth equation
3. Species area relationships
4. Ecological Biodiversity

The region of Biosphere Reserve which is legally protected and where no human activity is allowed is known as :

1. Transition zone
2. Restoration zone
3. Buffer zone
4. Core zone

Which is the National Aquatic Animal of India ?

1. River dolphin
2. Sea-horse
3. Gangetic shark
4. Blue whale

Which of the following is the most important cause of animals and plants being driven to extinction ?

1. Co-extinctions
2. Over-exploitation
3. Alien species invasion
4. Habitat loss and fragmentation

How many hot spots of biodiversity in the world have been identified till date by Norman Myers ?

1. 34
2. 17
3. 43
4. 25