DAY – 6: Insights Self Study Guide for Prelims + Mains – 2015

With reference to wetlands in India, consider the following statements:

1. India has 26 Ramsar Sites of which largest is the Vembanad-Kol wetland in Kerala
2. Kolleru Lake in Andhra Pradesh which is one of the Ramsar sites in India, is visited by Siberian Cranes during winter

Which of the above statements is/are correct?

With reference to Tropical Evergreen Forests, consider the following statements:

1. In these forests, there is no definite time for trees to shed their leaves, flowering and fruition.
2. Forests found in most parts of Andaman and Nicobar islands are tropical evergreen
3. Epiphytes which grow harmlessly upon other plants are found only in tropical evergreen forests

Which of the above statements is/are correct?

With reference to the Himalayan Vegetation, consider the following statements:

1. Deodar grows mainly in the eastern part of the Himalayan range
2. Deodar is endemic to the Himalayas
3. The southern slopes of the Himalayas carry a thicker vegetation cover because of relatively higher precipitation than the drier north-facing slopes
4. Pastures used extensively for transhumance by tribes like the Gujjars, the Bakarwals, the Bhotiyas and the Gaddis are located at the foothills of the Himalayas

Which of the above statements is/are INCORRECT?

With reference to Montreux Record, consider the following statements:

1. If a wetland is undergoing ecological changes due to human activities, such a wetland is listed under Montreux Record
2. Montreux Record was created by the International Union for Conservation of Nature

Which of the above statements is/are correct?

In which of the following National Parks do you likely find Waterfoul, Siberian Crane, Nilgai and Chital all at one place?

Consider the following statements:

1. Trees dominate in marshes whereas grass dominate in swamps
2. Marshes are common at the mouths of rivers, especially where extensive deltas have been built.

Which of the above statements is/are correct?

Consider the following statement:

“It is a type of wetland ecosystem characterized by wet, spongy, poorly drained peaty soil, dominated by the growth of mosses, Sphagnum, and heaths. They are usually acid areas, frequently surrounding a body of open water. They receive water exclusively from rainfall.”

To which of the following does above statement refer?

The management and protection of forests and afforestation on barren lands with the purpose of helping in the environmental, social and rural development is known as

Sandalwood is mainly an example of:

Consider the following statements:

1. Alluvial soils are generally rich in potash but poor in phosphorous
2. The sand content of the alluvial soil decreases from the west to east along the Ganges plain in India
3. Bhangar is the new alluvium and is deposited by floods annually, which enriches the soil by depositing fine silts

Which of the above statements is/are INCORRECT?

Consider the following statements:

1. Gully erosion takes place on level lands after a heavy shower and the soil removal is not easily noticeable
2. Soil erosion is one of the causes of river floods

Which of the above statements is/are correct?

With reference to droughts in India, consider the following statements:

1. If an area has more than 30 per cent of its gross cropped area under irrigation, the area is excluded from the drought-prone category
2. Meteorological drought results when the availability of water in different storages and reservoirs like aquifers, lakes, reservoirs, etc. falls below what the precipitation can replenish
3. Karnataka Plateau, northern parts of interior Tamil Nadu come under the category of Moderate Drought Affected Areas as per the official classification of drought prone areas in India

Which of the above statements is/are correct?

The Milankovitch theory or Milankovitch cycles suggest that

The effectiveness of any given GHG molecule will depend on which of the following factors?

1. The magnitude of the increase in its concentration
2. Its life time in the atmosphere
3. The wavelength of radiation that it absorbs

Choose the correct answer using the codes below:

With reference to ecological succession, consider the following statements:

1. It is the process by which the structure of a biological community evolves over time
2. If ecological succession takes place on a newly formed sand dune, then it is called a secondary succession
3. If ecological succession leads to destruction of a habitat, then it is called as climax

Which of the above statements is/are INCORRECT?