SSC Ecology and Environment Set- 1
Total Questions:- 50
Time:- 30 Minutes
TCS Pattern MCQs
Date:- 13/06/2026
1. Which among the following is not an abiotic component of an ecosystem?
2. Deserts, rain forests, coral reefs and mangroves are features of ______ diversity.
3. Which among the following ecosystem have inverted biomass pyramid?
4. Human Beings belong to which category of the ecosystem?
5. What are interspecies interactions called that have a positive effect on per individual reproduction and/or survival of the species involved?
6. Which of the following are the largest fixator of solar energy?
7. What is the basic requirement for the functioning and maintenance of an ecosystem?
8. Who coined the term “Ecology”?
9. Which of the following is/are Abiotic components?
I. Rocks
II. Plants
III. Soil
10. In biological terms, ––––– is a relationship between two organisms in which one organism benefits and the other is unaffected.
11. The vertical distribution of different species occupying different level is called__________.
12. Out of the following four, three are ecological pyramids, thus forming a group. Which one does not belong to this group?
13. Which of the following is grazing food chain?
14. Who conducted the study on the 'Trophic-Dynamic Aspect of Ecology' in the year 1942?
15. Which of the following is not considered as a part of the Abiotic Environment?
16. Which of the following is not abiotic?
17. The word 'ecology' is derived from the ______ word 'Oekologie'.
18. Which of the following ecologists is famous for studying the life of plants in the Indiana Dunes in 1896?
19. At which level of the food chain are millipedes, springtails, woodlice, dung flies, and snails included that obtain nutrition from dead or decaying plants or animals?
20. Taiga is an example of which type of ecosystem?
21. How the standing crop is measured in a particular trophic level?
22. A pyramid of biomass is a diagram that represents the population at each level of the food chain. According to it,________, occupies the base with the highest biomass.
23. A living part of the organisms environment is known as
24. The ––––– is a the narrow zone we find land, water and air together which contains all forms of life.
25. The large carnivorous or the tertiary consumers exist at which level of the food chain?
26. The narrow zone of contact between lithosphere, hydrosphere and atmosphere where natural vegetation and wildlife exist is called ........
27. All green plants and certain blue-green algae which can produce food by photosynthesis are called the ____.
28. Sunlight forms which component of habitat?
29. Grassland ecosystem has which type of biomass pyramid?
30. Which of the following is parasitic food chain?
31. The study of relation of animals and plants to their surroundings is called ______.
32. The pyramid of energy is……….
33. Which of the following is an example of an artificial ecosystem?
34. Which of the following options correctly represents the matching of trophic levels in Column-A with the examples in Column-B?
| Column-A | Column-B |
|---|
| i. First Trophic Level | a. Humans |
| ii. Second Trophic Level | b. Phytoplankton |
| iii. Third Trophic Level | c. Zooplankton |
| iv. Fourth Trophic Level | d. Fishes |
35. The part of the earth's surface and atmosphere where plants and animals live is called ––––.
36. Small, marine-dwelling organisms, phytoplankton, are related to which trophic level in the food web?
37. In 1972,_______coined the term 'pyramid of numbers', which represents the total number of individuals (population) at each trophic level.
38. How many types of ecological pyramids are present in ecosystem?
39. Select the correct statement–
40. What is the correct sequence of zones in a pond ecosystem from bottom to top?
41. Identify the possible link “X” in the following food chain? Grass→Insect→Frog→X →Eagle
42. Identify correct type of food chain: Grass→ Rabbit→Fox
43. Which among the following is NOT classified under consumers?
44. Which is/are NOT Abiotic components?
I. Plants
II. Animals
III. Water
45. What is called the total number of organisms living in both plants and animals in a given area?
46. Which ecologist's research provided revolutionary new insight into how energy and nutrients flow through ecosystems?
47. Which of the following is NOT manmade ecosystem?
48. Which of the following is an abiotic component that constitutes the environment?
49. In 1866, who proposed a new term 'Oecologie', which defines the study of the relationships of organisms with their environment?
50. Components included information of any ecology:-
