SSC Ecology and Environment Set- 1
Total Questions:- 50
Time:- 30 Minutes
TCS Pattern MCQs
Date:- 12/09/2026
1. What is the basic requirement for the functioning and maintenance of an ecosystem?
2. The pyramid of energy is……….
3. Which of the following ecologists is famous for studying the life of plants in the Indiana Dunes in 1896?
4. What are interspecies interactions called that have a positive effect on per individual reproduction and/or survival of the species involved?
5. Identify correct type of food chain: Grass→ Rabbit→Fox
6. How many types of ecological pyramids are present in ecosystem?
7. Small, marine-dwelling organisms, phytoplankton, are related to which trophic level in the food web?
8. Which of the following is not considered as a part of the Abiotic Environment?
9. 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.
10. Who conducted the study on the 'Trophic-Dynamic Aspect of Ecology' in the year 1942?
11. Which among the following is NOT classified under consumers?
12. Which of the following is grazing food chain?
13. Human Beings belong to which category of the ecosystem?
14. How the standing crop is measured in a particular trophic level?
15. The narrow zone of contact between lithosphere, hydrosphere and atmosphere where natural vegetation and wildlife exist is called ........
16. Who coined the term “Ecology”?
17. Grassland ecosystem has which type of biomass pyramid?
18. In 1972,_______coined the term 'pyramid of numbers', which represents the total number of individuals (population) at each trophic level.
19. Which ecologist's research provided revolutionary new insight into how energy and nutrients flow through ecosystems?
20. Which of the following is an example of an artificial ecosystem?
21. The ––––– is a the narrow zone we find land, water and air together which contains all forms of life.
22. 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 |
23. Identify the possible link “X” in the following food chain? Grass→Insect→Frog→X →Eagle
24. Deserts, rain forests, coral reefs and mangroves are features of ______ diversity.
25. Which of the following is NOT manmade ecosystem?
26. The part of the earth's surface and atmosphere where plants and animals live is called ––––.
27. Components included information of any ecology:-
28. What is the correct sequence of zones in a pond ecosystem from bottom to top?
29. A living part of the organisms environment is known as
30. Sunlight forms which component of habitat?
31. Which among the following is not an abiotic component of an ecosystem?
32. Select the correct statement–
33. Which among the following ecosystem have inverted biomass pyramid?
34. 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?
35. Which of the following is an abiotic component that constitutes the environment?
36. Out of the following four, three are ecological pyramids, thus forming a group. Which one does not belong to this group?
37. Which of the following is/are Abiotic components?
I. Rocks
II. Plants
III. Soil
38. Taiga is an example of which type of ecosystem?
39. Which is/are NOT Abiotic components?
I. Plants
II. Animals
III. Water
40. In 1866, who proposed a new term 'Oecologie', which defines the study of the relationships of organisms with their environment?
41. The word 'ecology' is derived from the ______ word 'Oekologie'.
42. The large carnivorous or the tertiary consumers exist at which level of the food chain?
43. All green plants and certain blue-green algae which can produce food by photosynthesis are called the ____.
44. Which of the following are the largest fixator of solar energy?
45. The study of relation of animals and plants to their surroundings is called ______.
46. What is called the total number of organisms living in both plants and animals in a given area?
47. The vertical distribution of different species occupying different level is called__________.
48. Which of the following is not abiotic?
49. Which of the following is parasitic food chain?
50. In biological terms, ––––– is a relationship between two organisms in which one organism benefits and the other is unaffected.
