Loss of Biodiversity

Q.

The rate at which species go extinct without human interference is called ___.

1. Extinction rate

2. Massive extinction rate

3. Background extinction rate

4. All of the above

Q. Rules and recommendations dealing with formal names of all of the following organisms is given in International Code of Botanical Nomenclature, except

किसके अतिरिक्त निम्नलिखित में से सभी जीवों के औपचारिक नामों से संबंधित नियम तथा विशेषताएं इंटरनेशनल कोड ऑफ बोटेनिकल नोमेनक्लेचर में दी गई है?

1. Hydra
   
   हाइड्रा
2. Allium
   
   एलियम
3. Solanum
   
   सोलेनम
4. Mangifera
   
   मैंजीफेरा

Q. Which of the following is true about endangered species?

1. They are species found in a particular region
2. They are at risk of getting extinct
3. They can be threatened in the near future
4. They are also known as vulnerable species

Q. Habitat loss and habitat fragmentation cause loss of biodiversity and even lead to species extinction.

1. False
2. True

Q. What is true regarding background extinction?

1. Calculated from widespread events that wipes out the majority of living plants and animals.
2. The extinction of individual species due to natural environmental or ecological factors.
3. Calculated from rate of extinction that occurred before homo sapiens appeared on Earth.
4. Species going extinct once every thousand years.