Environment, Biodiversity & Climate Change MCQs with Answers
1. Which national park in Sikkim is a UNESCO World Heritage Site?
- Kaziranga National Park
- Great Himalayan National Park
- Khangchendzonga National Park
- Jim Corbett National Park
Answer: C) Khangchendzonga National Park
2. Mussels are considered an important indicator species for monitoring marine pollution because they are:
- Filter-feeding organisms
- Deep-sea predators
- Fast-moving migratory species
- Producers of oxygen in oceans
Answer: A) Filter-feeding organisms
3. Which international convention is related to the conservation of wetlands?
- Kyoto Protocol
- Ramsar Convention
- Paris Agreement
- Montreal Protocol
Answer: B) Ramsar Convention
4. Which wetland in India is famous for migratory birds and is located in Rajasthan?
- Sambhar Lake
- Loktak Lake
- Wular Lake
- Keoladeo National Park
Answer: D) Keoladeo National Park
5. Which of the following ecosystems is closely associated with estuaries?
- Desert ecosystem
- Tundra ecosystem
- Mangrove ecosystem
- Grassland ecosystem
Answer: C) Mangrove ecosystem
6. Which of the following is a famous estuarine ecosystem in India?
- Sundarbans
- Thar Desert
- Nilgiri Hills
- Aravalli Range
Answer: A) Sundarbans
7. Which microscopic algae live in symbiotic relationship with coral polyps?
- Diatoms
- Zooxanthellae
- Cyanobacteria
- Dinoflagellates
Answer: B) Zooxanthellae
8. Hydroponics refers to the cultivation of plants:
- Only in soil
- Only in deserts
- Without soil using nutrient solutions
- Only in forests
Answer: C) Without soil using nutrient solutions
9. Which radiation is emitted during radioactive decay and has very high penetrating power?
- Alpha radiation
- Beta radiation
- Infrared radiation
- Gamma radiation
Answer: D) Gamma radiation
10. Eutrophication is mainly caused by excessive nutrients such as:
- Carbon and hydrogen
- Nitrogen and phosphorus
- Calcium and magnesium
- Oxygen and nitrogen
Answer: B) Nitrogen and phosphorus