DAY – 4: Insights Self Study Guide for Prelims + Mains – 2015

Which of the following factors affect the character and extent of vegetation?

1. Temperature
2. Humidity
3. Soil
4. Precipitation

Choose the correct answer using the codes below:

With reference to invasive species, consider the following statements:

1. Around the world, many Threatened or Endangered species are at risk primarily due to invasive species
2. A species is considered as invasive only when it comes from a foreign country
3. Invasive species can change the food web in an ecosystem by destroying or replacing native food sources

Which of the above statements is/are correct?

Consider the following statements:

1. A very large ecosystem on land having distinct types of vegetation and animal life is called a biome
2. If a vegetation zone lies in a region where mean annual average temperature is between 17°C to 24°C then it is designated as Temperate Vegetation Zone

Which of the above statements is/are correct?

Consider the following statements:

1. Teak is the most dominant species of this forest
2. These forests are also called as monsoon forests
3. These forests are found on the eastern slopes of the Western Ghats

To which of the following forest types does above descriptions are related?

With reference to montane forests in India, consider the following statements:

1. The wet temperate type of forests are found at higher altitude than the temperate grasslands
2. Alpine forests are found at high altitudes, generally more than 3,600 metres above sea-level
3. Snow Leopard which is found in these forests is listed as endangered on the IUCN Red List of Threatened Species

Which of the above statements is/are correct?

With reference to mangroves, consider the following statements:

1. Mangroves require low-oxygen soils to grow
2. Mangrove forests only grow at tropical and subtropical latitudes near the equator

Which of the above statements is/are INCORRECT?

This largest Asian antelope, listed as ‘Least Concern’ by IUCN and found in central and northern India, is known which of the following name?

Chandka wildlife Sanctuary located in north western fringe of Bhubaneswar in Odisha is famous for conserving which of the following wild animals?

To which one of the following types of vegetation does rubber tree belong to?

Consider the following statements:

1. Nitrogen fixing bacteria convert nitrogen into nitrates and nitrites
2. Other than nitrogen fixing bacteria no other process can convert nitrogen into nitrates and nitrites on earth
3. Plants generally take up nitrates and nitrites and convert them into amino acids

Which of the above statements is/are correct?

With reference to ozone, consider the following statements:

1. Unlike oxygen, ozone is poisonous which can cause damage to mucous and respiratory tissues in animals, and also tissues in plants
2. Ozone is a powerful reducing agent which has many industrial applications
3. Ozone is an allotrope of oxygen

Which of the above statements is/are correct?

Boron and Zinc are two important micronutrient that plants require for their growth. With reference to their functions, consider the following statements:

1. Zinc is required for protein synthesis, growth hormone production and seed development
2. Boron plays an important role in the movement and metabolism of sugars in the plant

Which of the above statements is/are correct?

With reference to a fish species found in India, consider the following statements:

1. Native to streams and rivers in India, the only surviving wild population is in the Cauvery River, leading to its IUCN rating as vulnerable
2. It is widely aquafarmed and introduced populations exist outside its native range
3. It is also known as the white carp – a species of ray-finned fish in the carp family.

The above description is with reference to which of the following type of fishes?