Environmental Studies · Geography

Natural Vegetation and Habitats

1,703 Questions

Study the characteristics of various biomes, including tropical rainforests, savannas, and thorn forests. Questions address ecological concepts like stratification, climate factors, and regional vegetation types such as littoral forests. This topic is commonly asked in geography and environmental science papers.

Forest biomes and typesSavanna and grassland habitatsTropical rainforest characteristicsEcological stratificationThreats to natural habitats

Natural Vegetation and Habitats Questions

Multiple choice

Tropical dense forests are found in areas that have

  1. low rainfall and low temperature

  2. high rainfall and low temperature

  3. low rainfall and high temperature

  4. high rainfall and high temperature
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The tropical rainforest is a hot, moist biome found near Earth's equator. These are found in areas that have high rainfall and high temperature.

Multiple choice

Terracing is done in

  1. desert areas

  2. hilly areas

  3. plain areas

  4. dry areas
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Graduated terrace steps are commonly used to do farming in hilly or mountainous terrain.

Multiple choice

Three of the following criteria have contributed to recognition of Western Ghats- Sri Lanka and Indo-Burma regions as hotspots of biodiversity:

  1. Species richness
  2. Vegetration density
  3. Endemism
  4. Ethno-botanical importance
  5. Threat perception
  6. Adaptation of flora and fauna to warm and humid conditions

Which three of the above are correct criteria in this context?

  1. 1, 2 and 6

  2. 2, 4 and 6

  3. 1, 3 and 5

  4. 3, 4 and 6
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A biodiversity hotspot is a biogeographic region with a significant reservoir of biodiversity (species richness) that is under threat from humans. To qualify as a biodiversity hotspot on Myers 2000 edition of the hotspot-map, a region must meet two strict criteria: it must contain at least 0.5% or 1,500 species of vascular plants as endemics, and it has to have lost at least 70% of its primary vegetation.

Multiple choice

The Himalayan range is very rich in species diversity. Which one among the following is the most appropriate reason for this phenomenon?

  1. It has a high rainfall that supports luxuriant vegetative growth.

  2. It is confluence of different biogeographical zones.

  3. Exotic and invasive species have not been introduced in this region.

  4. It has less human interference.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The richness of species diversity in the Himalayas is due to the occurrence of species of different biogeographic regions like Irano-Turanian, Mediterranean, Indo-Chinese, Indian, Malaysian, Eastern Asiatic, Circumboreal, Australian, Amazonian, Brazilian, Andean, North American.

Multiple choice

Which one of the following is not a site for in-situ method of conversion of flora?

  1. Biosphere Reserve

  2. Botanical Garden

  3. National Park

  4. Wildlife Sanctuary
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In-situ conservation, the conservation of species in their natural habitats, is considered the most appropriate way of conserving biodiversity. Conserving the areas where populations of species exist naturally is an underlying condition for the conservation of biodiversity. That\'s why protected areas form a central element of any national strategy to conserve biodiversity. These include national parks, sanctuaries, biosphere reserve, nature reserve, natural monuments, and cultural landscapes, etc.  Zoos and Botanical gardens are the most conventional methods of ex-situ conservation.

Multiple choice

Joshua tree is a characteristic tree of which of the following ecosystems?

  1. Desert ecosystem

  2. Forest ecosystem

  3. Pond ecosystem

  4. Both (1) and (2)
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Joshua tree is one of the most characteristic plants of the Mojave desert and extends southwards to the Mohave-Sonoran desert ecotone. This species grows from Southern California, Mexico and Western Arizona eastwards into Southern Nevada and Southwestern Utah.

Multiple choice

Which of these is the correct habitat of the white lotus?

  1. The desert areas with negligible rainfall

  2. The wetland areas with water of two meter depth

  3. The hilly terrains with freshwater from rivers

  4. The coastal areas with saline water reserves
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

��The white lotus is a plant growing in wetland areas with water of two meters in depth�� gives usthe answer.

Multiple choice

The biome with the shortest growing season is

  1. Savanna

  2. Taiga

  3. Chaparral

  4. Tundra
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

 A tundra consists of plains characterised by snow ice and frozen soil for most part of the year. Temperature of the warmest month does rise above 0°C but never above 10°C. As such the ground may be free from snow, but for a short period. Growing period (less than 50 days) is only the short summer season.