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VisionIAS - Online Self Test
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Questions for practice
1)

Which of the following are the characteristics of the Equatorial rainforest -

  1. Densest forest
  2. Different layers of vegetation
  3. Rainfall only during winter
  4. Low biodiversity
  5. Wet and warm climate
  6. Presence of epiphytes

Select the correct answer using the codes given below.

(a)1, 2 and 3 only

(b)3, 4, 5 and 6 only

(c)1, 2, 5 and 6 only

(d)1, 2, 3, 4, 5 and 6

2)

Which of the following statements is/are correct?

  1. Ecotone is a transitional area of vegetation only between two different plant communities, such as forest and grassland.
  2. Estuary is an example of Ecotone.

Select the correct answer using the codes given below:

(a)1 Only

(b)2 Only

(c)Both 1 and 2

(d)Neither 1 nor 2

3)

Consider the following statements regarding wetlands:

  1. They support rich biodiversity and provide a wide range of ecosystem services such as water storage, water purification, flood mitigation, erosion control, aquifer recharge, and others.
  2. Wetlands can be defined as lands transitional between terrestrial and aquatic ecosystems where the water table is usually at or near the surface or the land is covered by shallow water.

Which of the statements given above is/are correct?

(a)1 and 2 only

(b)1 only

(c)2 only

(d)none of these

4)

Consider the following statements with respect to the Mangrove vegetation of India:

  1. It is found at the confluence of land and sea waters
  2. It is an ecotone area.

Which of the statements given above is/are incorrect?

(a)1 only

(b)2 only

(c)Both 1 and 2

(d)Neither 1 nor 2

5)

Which of the following defines the edge effect?

(a)When a species is large in number and population density in ecotone than either adjoining community.

(b)When a species is large in number and population density in the adjoining community than in ecotone.

(c)when a species influence to large extent the energy flow in the ecotone.

(d)When a species influences the nutrient cycle in the ecotone.

6)

Consider the following statements:

Statement-I: The soil in tropical rainforests is rich in nutrients.

Statement II: The high temperature and moisture of rainforests cause tropical dead organic matter in the soil to decompose quickly.

Which one of the following is correct in respect of the above statements? 

(a)Both Statement-I and Statement-II are correct and Statement-II is the correct explanation for Statement-I 

(b)Both Statement-I and Statement-II are correct and Statement-II is not the correct explanation for Statement-I

(c)Statement-I is correct Statement-II is incorrect

(d)Statement-I is incorrect but Statement II is correct

7)

Consider these statements in the context of the Desert biome

  1. Photosynthesis is carried out by plants through their Stem to minimize transpiration loss. 
  2. Plants dry up for a very long period, and when water is available, they grow up. 
  3. Carnivores as predators present here are generally Nocturnal in nature. 
  4. Animals have a very short larval pupil stage so that they can reduce the overall demand for food.  

How many of the above statement(s) is/are correct?

(a)Only one

(b)Only two

(c)Only three

(d)Only four

8)

Concerning the Equatorial climate region, consider the following statements:

  1. Precipitation is heavy and well-distributed throughout the year.
  2. High temperatures and abundant rainfall support a luxuriant tropical rainforest.
  3. The equatorial vegetation comprises a multitude of evergreen trees that yield tropical hardwood.

How many of the above statements are correct?

(a)Only one

(b)Only two

(c)All three

(d)None

9)

Write a short note on  (75 words each/ 10 marks)

  1. Ecotone
  2. Edge effect
10)

Write a short note on the following; ( 150 words/ 10 marks)

  1. Tropical rainforest
  2. Temperate deciduous forest


Answers
1) c
2) b
3) a
4) d
5) a
6) d
7) d
8) c