NCERT Ecosystem Objective Questions,Solution,Answers,PDFs,MCQs

Ecosystem Mock Exam-1

Question No:1

Following are examples of terrestrial ecosystem except:

[A] Forest
[B] Wetland
[C] Grassland [D] Desert



Question No:2

Which of these are examples of aquatic ecosystem?

[A] Pond
[B] River
[C] Estuary [D] All



Question No:3

Which of these are examples of man-made ecosystem?

[A] Crop field
[B] Aquarium
[C] Wetland [D] Both (a) and (b)



Question No:4

Find the incorrect statement.

[A] Biosphere is a global ecosystem.
[B] Transfer of energy in ecosystem explains in terms of food web and nutrient cycle.
[C] Pond, lake and wetland are aquatic ecosystems. [D] Ecosystem is structural not functional unit of ecosystem.



Question No:5

Which of the following occupy top vertical strata of forest ecosystem?

[A] Shrubs
[B] Herbs and grasses
[C] Tree [D] Phytoplankton



Question No:6

Pond is a:

[A] Shallow fresh water body
[B] Deep fresh water body
[C] Shallow marine water body [D] Deep marine water body



Question No:7

Functional aspect of ecosystem can be explained in terms of:

[A] Productivity
[B] Decomposition and energy flow
[C] Nutrient cycle [D] All of the above



Question No:8

At the bottom of ponds decomposers found are:

[A] Fungi
[B] Bacteria
[C] Flagellates [D] All of these



Question No:9

Which of the following have only unidirectional flow?

[A] Carbon
[B] Nitrogen
[C] Energy [D] Sulphur



Question No:10

The amount of biomass or organic matter produced per unit area over a period of time by plants during photosynthesis is known as:

[A] Primary production
[B] Secondary production
[C] Net primary production [D] Net secondary production



Question No:11

Unit of primary production is:

[A] g/m2
[B] kcal/m2
[C] Both (a) and (b) [D] None of these



Question No:12

NPP is equal to:

[A] GPP + R
[B] GPP-R
[C] GPP x R [D] GPP +- R



Question No:13

Secondary productivity means:

[A] Rate of formation of organic matter by producer
[B] Rate of formation of new organic matter by consumers
[C] Rate of formation of inorganic matter by producer [D] Rate of formation of inorganic matter by consumers



Question No:14

Primary productivity depends on which of the following factors?

[A] Environmental factor
[B] Photosynthetic capacity of plant
[C] Availability of nutrients [D] All of the above



Question No:15

GPP means:

[A] Gross Public Partnership
[B] Gross Primary Production
[C] Gross Producer Production [D] Gross plant production