| 1. | Which of the following plants is a xerophyte? |
A. Mustard | |
B. Amarbel | |
C. will do | |
D. Neem tree |
| 2. | An example of abiotic component of the environment is – |
A. effect of soil on vegetation | |
B. beast | |
C. Wind | |
D. all |
| 3. | Hydroponics is related to – |
A. plant growth without soil | |
B. plant growth without water | |
C. connection of sound with water | |
D. conservation of water technology |
| 4. | Who is the biggest compounder of solar energy? |
A. bacteria | |
B. protozoa | |
C. fungus | |
D. Green plants |
| 5. | What should be the proportion of forest area in India to maintain ecological balance? |
A. 11.1 percent | |
B. 22.2 percent | |
C. 33.3 percent | |
D. 44.4 percent |
| 6. | Which of the following areas is famous for mangrove cultivation? |
A. lava forest of kalimpog | |
B. Odisha Kadandakaranaya Forest | |
C. Sajnekhali forest of South 24 Parganas | |
D. Jim Corbett National Park of Uttarakhand |
| 7. | Epiphytes are highly developed plants that depend on other plants. |
A. for food | |
B. mechanical support | |
C. for shade | |
D. for water |
| 8. | Phytotron is a facility which – |
A. Plants can grow in disease-free conditions | |
B. Endangered species of plants are protected | |
C. Plants can grow under controlled conditions | |
D. mutation is affected |
| 9. | Which of the following is suitable from environmental point of view? |
A. organic agriculture | |
B. shifting agriculture | |
C. Production of high yielding varieties | |
D. plants growing in glass houses |
| 10. | Most of the desert plants flower only at night because – |
A. Their flowering is controlled by low temperature | |
B. they are sensitive to the phases of the moon | |
C. desert insects eat flowers during the day | |
D. Desert insects are active at night |