What is common to the following plants:
Nepenthes, Psilotum, Rauwolfia, and Aconitum?

1. All are ornamental plants

2. All are phylogenetic link species

3. All are prone to overexploitation

4. All are exclusively present in the Eastern Himalayas

Q.8 The one-horned rhinoceros is specific to which of the following sanctuary?

1. Bhitar Kanika

2. Bandipur

3. Kaziranga

4. Corbett Park

Q.9 Amongst the animal groups given below, which one has the highest
percentage of endangered species?

1. Insects

2. Mammals

3. Amphibians

4. Reptiles

Q.10 Which one of the following is an endangered plant species of India?

1. Rauwolfia serpentina

2. Santalum album (sandalwood)

3. Cycas beddonei

4. All of the above

Q.11 What is common to Lantana, Eichhornia, and African catfish?

Q.12 The extinction of passenger pigeon was due to

1. Increased number of predatory birds

2. Overexploitation by humans

3. Noi-availability of the food

4. Bird flu virus inferior

Which of the following statements is correct?

1. Parthenium is an endemic species of our country.

2. African catfish is not a threat to indigenous catfishes.

3. Steller's sea cow is an extinct animal.

4. Lantana is popularly known as carrot grass.

Q.14 Among the ecosystem mentioned below, where can one find maximum biodiversity?

1. Mangroves

2. Desert

3. Coral reefs

4. Alpine meadows

Q.15 Which of the following forests is known as the "Lungs of the planet Earth?

1. Taiga forest

2. Tundra forest

3. Amazon rain forest

4. Rainforests of North-East India

Q.16 The active chemical drug reserpine is obtained form

1. Datura

2. Rauwolfia

3. Atropa

4. Papaver