Botany 4

1. Given below are the names of four energy crops.
Which one of them can be cultivated for ethanol? [2010]

2. Consider the following pairs: [2010]
Protected area - Well-known for
1. Bhiterkanika, Orissa - Salt Water Crocodile
2. Desert National Park, - Great Indian Bustard Rajasthan
3. Eravikulam, Kerala - Hoolak Gibbon
Which of the pairs given above is / are correctly matched?

3. Consider the following statements: [2009]
1. Sweet orange plant is propagated by grafting technique.
2. Jasmine plant is propagated by layering technique.
Which of the statements given above is/are correct?

4. Some species of plants are insectivorous. Why? [2010]

5. Consider the following statements about probiotic food: [2008]
1. Probiotic food contains live bacteria which are considered beneficial to humans.
2. Probiotic food helps in maintaining gut flora.
Which of the statements given above is/are correct?

6. Consider the following [2008]
1. Rice fields
2. Coalmining
3. Domestic animals
4. Wet lands
Which of the above are sources of methane, a major greenhouse gas?

7. Due to their extensive rice cultivation, some regions may be contributing to global warming. To what possible reason/ reasons is this attributable? [2010]
1. The anaerobic conditions associated with rice cultivation cause the emission of methane.
2. When nitrogen based fertilizers are used, nitrous oxide is emitted from the cultivated soil.
Which of the statements given above is / are correct?

8. In making the saffron spice, which one of the following parts of the plant is used? [2009]

9. Mon 863 is a variety of maize. It was in the news for the following reason. [2010]

10. Which one of the following is an insectivorous plant? [2008]